NGC 6822: A Difficult Galaxy In Sagittarius For Visual Observers; Known as “Barnard’s Galaxy”

Posted July 29, 2024 by rogerivester
Categories: Roger's Articles

Discovered by E.E. Barnard using a 5-inch refractor in 1884.

Hubble found it “fairly conspicuous” in a short focus 4-inch finder with a low-power ocular, but “barely discernible” at the primary focus of the 100-inch. Source: “Burnham’s Celestial Handbook”

I took images in RGB, Lum and finally Ha filters, and stretched the Histogram to enhance the stars, then adding the Ha overlay. Total imaging time about three hours, then processed in PixInsight.

I was able to glimpse NGC 6822 on the night of August 23, 2014. During the day, it was mostly cloudy with constant showers. Eventually, it cleared up enough for me to head to my spot at around 23.30. I noticed right away that sky conditions weren’t as good as the night before, and conditions would be deteriorating fast as humidity was on the rise (~95%). I was also somewhat worried about aurora activity (didn’t notice any, but some were noted on the night before) as well as approaching clouds (which eventually came only in the morning). 

After about 20 minutes in the general field of NGC 6822, I was ready to give up, but then suddenly, I got a few glimpses of an elongated, extremely faint patch of nebulosity at the NE edge of the field @ 46x (64′). I could only repeat this observation a few times afterward, but managed to sketch the object nonetheless. 

I looked at the drawing immediately after I got back home at around 2:30 AM, and despite initially being quite skeptical of having actually drawn the object at the right place, it was obvious: I had sketched the galaxy perfectly at the right position! I took a SQM-L measurement from NGC-6822 and it showed 19.80 (20.50 at zenith) at an altitude of 12º. Without a doubt, it would’ve been quite a lot easier to see the galaxy if it was higher in the sky, but it doesn’t get much better than this up here in Finland. 

The second drawing was made back in 2011 from GMARS, in Landers, California. Back then, I described the galaxy as follows: “Low surface brightness galaxy, but weakly visible even with direct vision. N-S elongated with a faint bar running in the middle and overall a slightly mottled structure. Several faint stars visible in the periphery, H-II regions not looked for. Both drawings were made using a 4.5-inch reflector.”

I have attempted to observe galaxy, NGC 6822 from my backyard since the early 90’s. My problem has been due in-part to a pesky unshielded street light in relative close proximity to my house. On the night of about September 14, 2014, using a utility building for a light block, I was surprised and elated to finally see this galaxy. I used a 102mm (4-inch) refractor with a magnification of 63x, and used a dark cloth to cover my head to reduce ambient lighting. 

It was very difficult, and I would continue to check my atlas. After more than an hour, and using a variety of eyepieces…still no luck. I began to wonder if this was going to be another year of not seeing this illusive galaxy.

After another check of my atlas, taking a deep breath, and using a small amount of field motion, I could see a faint brightening…I knew this was it. Moving the telescope slightly back and forth ever so slightly, the faint glow or brightening became obvious. Once I had seen this brightening, I could move it out of the field of view and then find the glow again fairly easily. 

I was finally able to make that long awaited sketch and some notes. I noticed a subtle N-S elongation. The size was fairly large with very low surface brightness. The night was Saturday, September 20th 2014: 

Another observation of galaxy, NGC 6822:

Our local astronomy club met at Lost Arrow Ranch, nestled in the South Mountains for an observing session. This is a really good site and on occasion I’ve estimated the NELM (naked eye limiting magnitude) at mag. 6.5. However, on this occasion, the transparency was not good due to high moisture content in the air. The NELM was reduced to about mag. 5.3, which is not good when attempting to see a faint, low-surface brightness galaxy.

During the event, and using a friend’s 9.25-inch SCT telescope, I was able to see the galaxy, but with difficulty. Quite a few of the group observed it through this scope, but all, having difficulty.

Maybe one night I might attempt using my 6-inch f/6 Newtonian @ 29x, and from my backyard. However, this is contingent on having a clear and good night.

My rough field sketch using a 102 mm refractor from September 2014: This might even be a bit of exaggeration of what I saw.

Barnard’s Galaxy is a member of the Local Group, a small cluster of about 40 galaxies including our own.  It was discovered by Edward Emerson Barnard in 1884, but not recognized as an extragalactic object until the 1920s.

Barnard described his discovery as “an excessively faint nebula” … very diffuse and even in its light. With 6-inch it is very difficult to see, and a 5-inch with a power of 30± with a field of about 1 1/4º it is quite distinct.  This should be borne in mind in looking for it.”

Barnard’s advice is worth heeding.  It is often easier to spot NGC 6822 in a small scope that allows a wide field than in a large scope with a more restricted field.  While Barnard’s Galaxy has been seen in 7 x 35 binoculars, I recommend 2.4-inch (60-millimeter) or larger scopes under moderately dark skies.  I can see the galaxy with my 4.1-inch refractor at 17x from my semi-rural home where the southern sky is awash with the glow from a nearby city.  It is elusive and appears very faint and oblong.  The long dimension measures about 11′ and runs north-south. Sue French

British Airways Flight 009, And The Incredible Event That Occurred On 24 June 1982.

Posted June 18, 2024 by rogerivester
Categories: Roger's Articles

I’m sharing the story of British Airways Flight 009, callsign Speedbird 9, that departed from London Heathrow to Auckland. I’ve compiled the following information primarily from Wikipedia. The plane was a Boeing 747-236B. Photo credit also Wikipedia: Roger Ivester

Actual plane photo as following:

On 24 June 1982, the aircraft flew into a cloud of volcanic dust by the eruption of Mount Galunggung, SE of Jakarta, Indonesia. A catastrophic event occurred….all four engines shutdown.

Selected information as following from Wikipedia:

On 24 June 1982, the route was flown by the City of Edinburgh, a Boeing 747-236B registered as G-BDXH. The aircraft flew into a cloud of volcanic ash thrown up by the eruption of Mount Galunggung around 110 miles (180 km) south-east of Jakarta, Indonesia, resulting in the failure of all four engines.

Partly because the event occurred at night, obscuring the cloud, the reason for the failure was not immediately apparent to the crew or air traffic control. The aircraft was diverted to Jakarta in the hope that enough engines could be restarted to allow it to land there. The aircraft glided out of the ash cloud, and all engines were restarted (although one started vibrating and the crew had to shut it down soon after), allowing the aircraft to land safely at Halim Perdanakusuma Airport in Jakarta.

The crew members of the accident segment had boarded the aircraft in Kuala Lumpur, while many of the passengers had been aboard since the flight began in London.

Incident or event:

At the time of the incident, the flight crew consisted of 32-year-old Senior First Officer Roger Greaves, 40-year-old Senior Engineer Officer Barry Townley-Freeman, and 41-year-old Captain Eric Henry Moody. The flight crew members had boarded the aircraft at Sultan Abdul Aziz Shah Airport in Kuala Lumpur and were due to pilot the 747-200 for the Malaysia to Perth Airport leg.[4]

Shortly after 13:40 UTC (20:40 Jakarta time) above the Indian Ocean, south of Java, the crew first noticed an unusual effect on the windscreen similar to St. Elmo’s fire. Despite the weather radar showing clear skies, the crew switched on engine anti-ice and the passenger seat belt signs as a precaution.

As the flight progressed, smoke began to accumulate in the passenger cabin of the aircraft. Passengers who had a view of the aircraft’s engines through the window noted that they were unusually bright blue, with light shining forward through the fan blades and producing a stroboscopic effect.

Around 13:42 UTC (20:42 Jakarta time), the number-four Rolls-Royce RB211 engine began surging and soon flamed out. The flight crew immediately performed the engine shutdown drill, quickly cutting off fuel supply and arming the fire extinguishers. Less than a minute later, at 13:43 UTC (20:43 Jakarta time), engine two surged and flamed out.

Within seconds, and almost simultaneously, engines one and three flamed out, prompting the flight engineer to exclaim, “I don’t believe it—all four engines have failed!”

Without engine thrust, a 747-200 has a glide ratio of roughly 15:1, meaning it can glide forward 15 (about 9 miles) for every 0.62 miles it drops.

The flight crew quickly determined that the aircraft was capable of gliding for 23 minutes and covering 91 nautical miles from its flight level of 37,000 feet.

At 13:44 UTC (20:44 Jakarta time), Greaves broadcast a Mayday to the local air traffic control authority, stating that all four engines had failed. However, Jakarta Area Control misunderstood the message, interpreting the call as meaning that only engine number four had shut down.

After a nearby Indonesia flight relayed the message to them, air traffic control correctly understood the urgent message. Despite the crew emergency transponder setting of 7700, air traffic control could not locate the 747 on their radar screens.

Many passengers, fearing for their lives, wrote notes to relatives.

The crew began engine restart drills, despite being well outside the recommended maximum engine in-flight start envelope altitude of 28,000 feet. The restart attempts failed.

As pressure within the cabin fell, oxygen masks dropped from the ceiling – an automatic emergency measure to make up for the lack of air. On the flight deck, however, Greaves’s mask was broken; the delivery tube had detached from the rest of the mask. Moody swiftly decided to descend at 1,800 m per minute to an altitude where there was enough pressure in the outside atmosphere to breathe almost normally.

At 13,500 feet (4,100 m), the crew was approaching the altitude at which they would have to turn over the ocean and attempt a risky ditching. Although the crew had guidelines for the water landing procedure, no one had ever tried it in a Boeing 747.

As they performed the engine restart procedure, engine number four finally started, and at 13:56 UTC (20:56 Jakarta time), Moody used its power to reduce the rate of descent. Shortly thereafter, engine three restarted, allowing him to climb slowly. Shortly after that, engines one and two successfully restarted, as well.The crew subsequently requested and expedited an increase in altitude to clear the high mountains of Indonesia.

As the aircraft approached its target altitude, the St. Elmo’s fire effect on the windscreen returned. Moody throttled back, but engine number two surged again and was shut down. The crew immediately descended and held 12,000 feet (3,700 m).

As Flight 009 approached Jakarta’s Halim Perdanakusuma International Airport, the crew found seeing anything through the windscreen difficult, and made the approach almost entirely on instruments, despite reports of good visibility.

The crew decided to fly the instrument landing system, but the vertical guidance system was inoperative, so they were forced to fly with only the lateral guidance as the first officer monitored the airport’s distance-measuring equipment (DME). He then called out how high they should be at each DME step along the final approach to the runway, creating a virtual glide slope for them to follow.  

Although the runway lights could be made out through a small strip of the windscreen, the landing lights on the aircraft seemed to be inoperable. After landing, the flight crew found taxiing impossible, due to glare from apron floodlights, which made the already sandblasted windscreen opaque. Upon disembarking, the flight engineer knelt at the bottom of the steps and kissed the ground.

Alien Convention In Spruce Pine, North Carolina: Saturday, June 8th 2024: It Was A Great And Fun Day…Can’t Hardly Wait For June 14th 2025!

Posted June 8, 2024 by rogerivester
Categories: Roger's Articles

This was my first time to attend the “Spruce Pine Alien Festival” and so glad I was able to go. What a day it was! I was probably passed by many “Real Space Aliens” but was just unaware at the time.

So here are some photos from the day:

26,000 people attended this one day event last year, and I feel sure there were more or at least as many this year. I had to park at least 1/2 mile away and walk to the downtown area, however, I didn’t mind this at all.

Pictured below: A beautiful Pure Crystal Ball made from Spruce Pine Quartz. Absolutely incredible, and amazing. The finest Quartz in the world comes from Spruce Pine. Computer chips for cars, computers and anything where they are used are made from Spruce Pine quartz.

And also the first mirror that was manufactured for the 200-inch Hale Telescope was made from this quartz. Unfortunately the mirror cracked during the process before completion and another one was made from a new process or material at that time, known as Pyrex. This glass was better able to handle the incredibly heat needed during the manufacturing process.

“Rocks And Things” have an unbelievable stock of collectable rocks, minerals, fossils and anything you can imagine. They have a brick and mortar store and been in business for many years in Spruce Pine.

This incredible quartz ball can be purchased from “Rocks And Things” at (828-765-1667). This is a one of kind item, so consider purchasing while it’s still available. I just didn’t seem to have enough cash in my pocket today. 🙂

Spruce Pine, North Carolina: How It became a part of astronomy history via The Chestnut Flats Mine, due to the incredibly pure Quartz which was used in the manufacture of the first 200-Inch Hale Telescope mirror. As mentioned previously (above) unfortunately that first mirror cracked during the manufacturing process.

Historic photo from days past of the Chestnut Flats mine as following: Photo credit: Mitchell County Historical Society

I found the following article by David Biddix, a Spruce Pine native, who shares some very interesting information. This is not the complete article.

Alex Glover…is the Director of Mining and Environment for Active Minerals International, LLC. He is a licensed professional geologist in nine southeastern states in the United States and has lived in the Spruce Pine area since 1997. He is interested both in the geology of the Spruce Pine Mining District and in its history, which goes back some 170 years.

….I’ve always wondered why ore from the Chestnut Flats Mine near Spruce Pine was chosen for the telescope’s mirror. Recently, I had a discussion with Alex Glover, a local geologist and mining historian who is very familiar with what is known as the Spruce Pine Mining District, a 10 mile-long, 5 mile-wide outcropping of rock from early in earth’s history that contains some of the purest minerals in the world and is the economic lifeblood of this region. This purity was the reason Corning Glass came to this region to find materials for the mirror. Alex speaks about what types of minerals are found in the district….

I purchased the following quartz specimens, pictured on the table below from “Rocks And Things.” Possibly even from the famous Chestnut Flats Mine, or for sure from the same vein of quartz rock. Roger Ivester

Solar telescopes provided by North Carolina Amateur Astronomers, and friends of mine for many years. Steve Davis and Don Brooks.

After not eating anything all day, I decided to stop at Western Sizzlin’ Steak House in Spruce Pine, for a delicious meal. Despite a large and overflowing crowd, I was able to be seated quickly and with excellent service. I could for sure recommend the Western Sizzlin’ Steak House, for great food and service.

A Very Rare Early Morning Rainbow: Saturday, May 25th 2024 At 7:30 AM Lasting Only A Few Minutes

Posted May 25, 2024 by rogerivester
Categories: Roger's Articles

May 24th 2024 at 7:30 AM: While Debbie and Sophie were still sleeping…I walked outside to see this amazing early morning rainbow in the west. This was my first time to see a rainbow at this time of the day, as they mostly occur in the afternoon and in the east. However, maybe more frequent than I’d think, as I’m just not looking at that time of the day. And we all know that a rainbow is always opposite the sun: When a rainbow is seen during the afternoon…the sun is in the west.

Aurora As Seen From The Foothills Of North Carolina On The Nights of May 10th and 11th 2024: And Again On October 10th 2024 All From My Suburban Backyard At A Latitude 35º 15′

Posted May 22, 2024 by rogerivester
Categories: Roger's Articles

On the night of May 10th 2024, beginning at about 11:00 PM and lasting a couple or more hours. The northern lights enveloped the entire northeastern part of sky with a brilliant red color from my suburban backyard . The Aurora Borealis is rarely seen this far south at a latitude of +35 degrees 15 mins. north latitude.

However, this is not the first time I’d seen the Northern Lights from my backyard.

The following photos were made on the night of May 10th 2024, beginning at 11:30 and shortly after midnight. I was using an iPhone 14 with 3-second exposures, and being handheld.

Photos of aurora using an iPhone 14 (hand-held) on the night of October 10th 2024 as following:

The following photo of the aurora display with the Andromeda Galaxy (the tiny blur near the center of the photo) which is right of the constellation of Cassiopeia. Light pollution is severe in this area of the sky, which reduced the contrast of the aurora significantly.

Galaxy NGC 6118: Unanimously Agreed Upon By Amateurs To Be The Most Difficult Object In The Entire Herschel 400 List

Posted May 14, 2024 by rogerivester
Categories: Roger's Articles

March 26th 2025: After the problems I’ve had over a couple of years I just had to observe galaxy NGC 6118, again in 2025. So, during the late afternoon of March 26th, I set my mount up and pinned my auto-marine fabric to wires to create my light block system in my backyard.

3:45 AM: I minimized everything I’d require for an early morning observing session. I included three selected eyepieces in my small Pelican box, not wanting to bring a large box. And I brought all of my necessary items or tools in a small zipper bag: This included pencils, sketch cards, set-up stars, red lights, the large S&T Pocket Alas and other.

4:15 AM: I was looking in the eyepiece and in the area of the galaxy using an 11mm 82º apparent field eyepiece, for a magnification of 104x and a 0.79º true field. I began using field motion and then letting the galaxy drift back into the eyepiece field, and could see a faint elongated blur, with averted vision, but not constantly.

4:45 AM: Increasing the magnification, so I used 2.8x University Optics Klee Barlow, for a magnification of 291x and with a 0.28º true field, but the view was no better. And still only an intermittent blur, but this time more elongated. The galaxy was at such an altitude it was mostly above the light dome. However, there was another problem going on: A wildfire of over over 3,000 acres was raging in Polk County, which is only about 35 miles away. I’m not sure if smoke was an issue or not, but the sky had a reddish look along the horizon. So, probably likely.

5:14 AM: I lifted my eye from the eyepiece and “Gave Up The Ghost” as related to this galaxy for the final time, not likely to return. This galaxy has acted like a ghost for me, now going on two years.

My quest began in the later summer of 2023, and ended on March 27th 2025, but never being able to see the galaxy to a level I would like. Sometimes it’s important to know when good is enough, and time to quit. I made no new sketches or written notes…

I’ve seen “The Blinking Galaxy” for the last time, for certain from this location…but so poorly. I took the photos as following for the record and my notes.

I will continue to use this telescope (10-inch f/4.5) from my back deck only. My telescopes of choice for now and the future will be my 4.5-inch f/8, and 6-inch f/6, due to their smaller size and lighter weight.

Previous observations as following:

I attempted two very early morning observing sessions in March and April of 2024 from my suburban backyard, but again without success. A dark site is really needed to observe any low-surface-brightness galaxy, especially one as dim and faint as NGC 6118.

However, traveling to a dark-site has been over for me now, for many years. The disassembly of a heavy equatorial mount and handling a large solid-tube Newtonian, loading, driving, unloading, reassembly, and then having to do it all again, became just too much. I will just continue to do my best from the backyard.

Light pollution will only get worse, so maybe the following inexpensive “light-block” system might work for you also.

I use a medium-duty, lighter weight equatorial mount when observing from my backyard which requires star-hopping….not my GoTo mount from my back deck.

Darker skies from my back deck…

Light pollution

Fortunate for me, I was able to get a problem streetlight in front of my house, changed from a 4,000K LED unshielded light to a 3,000K light with a shield, and with optimum orientation away from my house.

A 5,000K multiple-bulb “residential carport light” is now my greatest problem when observing more southerly deep-sky objects. I have to move from my back-deck to my backyard for all deep-sky objects that are less than “about” +15º north declination.

Good news! The above light has been adjusted as following: February 21st 2025

My plans are now to re-observe NGC 6118 at about 1:00 AM, early May 2025, in an attempt to duplicate my 2024 observation. Will the “Blinking Galaxy” be easier with the now “redirected” 5,000K carport light?

Why was the light not changed last year? The house is now vacant, waiting for a new owner, and still shines from sunset to sunrise, but now, not toward my house.

I’m anxious for this “new coming” observation and I’ll include my supplemental notes to this post. Now this is serious “visual’ amateur astronomy! Again, galaxy NGC 6118 is considered by “most all” amateur astronomers to be the most difficult of the entire Herschel-400 list.

Date: May 11th 2024 (early AM observation and seeing NGC 6118) despite looking over the town of Boiling Springs, and the terrible “carport” light

Saturday morning: May 11th 2024 @ 1:00 AM, with a 5.0 NELM overhead, but far less in the location of NGC 6118, due to overlooking the town of Boiling Springs, and the problem “carport light” pictured above.

The following cellphone photo is from that night (May 11th) and beside my telescope. Note the constellation Scorpius toward the right lower corner. Now see the brighter pair of stars, almost in the center of the photo, above or north of Scorpius.

The most northern star, is known as “Yed Prior” at mag. 2.7. The second star toward the south or closest to Scorpius is “Yed Posterior” at mag. 3.2. Now move your telescope slightly to the NE of “Yed Prior” and use your star atlas to dead center, where NGC 6118 should be.

If you are a visual observer and observing from a suburban backyard, I wish you good luck and you too will see this faint and elusive galaxy.

With a bit of difficulty and after almost an hour, I was finally able to see the galaxy. One of my greatest problems had been a pesky LED streetlight in close proximity, shinning directly into my backyard. My portable “make-shift” observatory was the answer to this.

Description: A tiny and subtle brighter middle, which resembles that of a planetary nebula. And like so many planetary nebulae, when using direct vision, vanishes or winks out. The galaxy has a very faint and diffuse irregular halo, which is oriented NE-SW. After observing NGC 6118, it’s easy to understand why its named “The Blinking Galaxy.”

Photographs From Days Past Of Ivester Family And Events: Volume One

Posted April 27, 2024 by rogerivester
Categories: Uncategorized

Photographs From Days Past Of Ivester Family And Events: Volume One

Photos by Kerri Adams: I reviewed all of the photo files and selected as best as I could, only a few as following that might be interesting to all. Roger Ivester

Following photo: Velus Ivester (August 7th 1877-October 28, 1966) and wife Rebecca (Mar. 27, 1891 – Oct. 6, 1965)

First wife: Zula Edwards Ivester (Dec. 24, 1879 – Nov. 14, 1919)

Veterinarian in the buggy, who Carl Ivester interned with to become a practicing Veterinarian.

Twins (?) ….one of which would train Carl or mentor, to become a Veterinarian. Carl did a “multi-years” apprenticeship with one of these men.

F.V. Ivester and unknown person. The beginning of a store that would serve the Upper Cleveland area for many years.

Velus trading two older AC tractors for two new CA Allis-Chalmers Tractors. (Circa ~1954/1955). All of my older brothers were in this photograph, sitting on the tractors. I’ve heard this photo was in the Shelby Star.

(Note: Text and identifications precede the photographs in all the following)

F.V. Ivester and wife Cleo: The store in later days (as shown) became more than a store, but a meeting place for everyone in the local area. Any local news happening? This was the place to find out.

There was always a Shelby Star available in the store for anyone to read. The store was heated by a large coal burning heater with the coal pile very close outside.

On cold wintry days with snow or ice…seems that almost everyone would want to go to the store for serious discussions, such as, how bad the weather was. It was very important to get the thoughts from others. 

However, the real reason: Everyone just wanted to get out and drive in the snow or ice. Snow and ice always seemed to bring out the kids in most all adults…all the while, pretending they hated it.

Photo 2:

Photo 3: Possibly Ruth Adams as a child? Unknown person holding her. The smaller building was where wheat and grain was stored. The building to the right was an addition to the “old log barn.”

More about the building, and other buildings and barn later…

Photo 4: (Again, photos follow the text)

Reunion event at Kistler’s during Christmas 1955, in front of what was then known as “The Hut.” The Hut was were so many events happened when I was a kid growing up. The MYF (Methodist Youth Fellowship) met…seems it was on Thursday nights. And we would have a big Halloween event each and every year in the hut!

Kistler’s Church and the hut: Glenn Johnson who played Santa Claus on the night of our yearly Christmas plays. I thought he was the real Santa Claus, however, as I grew older, it occurred to me it was Glenn!

I’ve always said: “When you find out there is no Santa Claus, life is never the same…and not for the good.”

The Christmas play was in the church sanctuary in an empty corner, which now has a pew, or maybe the piano. Normally F.V. would remove his pickup wooden railings to use for the Nativity scene. He would also supply a few bales of hay for the manger area. We would begin practicing, normally a week or so after Thanksgiving.

69 years later: The following photo was made Sunday August 4th 2024, inside “The Hut” but now called the Fellowship Hall.

All of the following photographs and information are from the early to mid-90’s:

Photo 5: Ruth Adams and family

Photo 6: Donnie and Linda Ivester

Photo 7: Ruth Adams and family

Photo 8: Richard and Mary Ivester

Photo 9: Shelley and Boyd Ivester and Judy

Photo 10: Ronny, Pam, and Jason Ivester

11: Frances and Ruth Ivester

12: Gloria and Steve Ivester

13. Debbie and Roger Ivester

14. Carolyn and Jim Ivester with family

15. Michael Mauney and daughters

16. Skeet and Frances Ivester: (Remember: Photos follow text)

Skeet was always the best dressed man at Kistler’s Church.

17. Jerry and Boyd Ivester

18. Carl and Tyner Ivester (and others who I don’t know)

19. Janet and daughter

20. Gail Ivester and (?)

21. Boyd Ivester, Ruth Adams and Danny Mauney

22. I think we know all who are pictured below. Too many names to list.

23. Danny and Suzette Mauney and daughter.

24. Glenda and Chris with son Christoper, and also Nancy Daves.

Astronomy Articles by James Mullaney: Writer, Author, Former Associate Editor To Both Sky & Telescope And Astronomy Magazines

Posted April 23, 2024 by rogerivester
Categories: Uncategorized

The most embarrassing moment in my more than 60 years as an amateur and professional astronomer came one morning in the early 70s.  As the tour guide at Pittsburgh’s Allegheny Observatory, I was speaking to a group of 60 schoolchildren in the dome of the famed 13-inch Fitz-Clark refractor. 

My topic solar safety: how dangerous the Sun is to look at without a proper filter, whether it be with the naked-eye and especially with binoculars or a telescope.  I was near the top of the observing ladder projecting the Sun’s image onto a screen across the room.  As I was speaking, a little boy kept calling out my name:  “Mr. Mullaney, Mr. Mullaney, Mr. Mullaney.”  He was definitely running my spiel and finally in frustration I shouted down the ladder at him WHAT!  He said “Mr. Mullaney, your jacket is on fire!”  Sure enough, I hadn’t capped the 4-inch finder and it focused the Sun right onto my jacket – which was now smoldering. 

Thirty-three years ago, my wife and  I were privileged while on our honeymoon to be given a behind-the-scenes private tour of the Palomar Observatory facility.  In the control room for the 200-inch Hale reflector was a dogged-eared copy of the Sky & Telescope reprint of  “The Finest Deep-Sky Objects” by Wally McCall and myself.  The story-line is that no one ever looks through the 200-inch except for research purposes since time is very valuable on the scope.  But apparently someone – maybe several someones –  had been using our showpiece list to look at between “takes.” 

Can you imagine seeing the Orion Nebula, the Hercules Cluster, or the Sombrero Galaxy at the prime focus of this huge Big Eye?  (BTW – while on the floor of this mammoth instrument I actually hugged part of the mounting!)

Sir William Herschel, the greatest observer and telescope-maker in history. He made and used the largest telescopes in existence up to his famed “40 foot” (48-inch aperture) but his favorite was his “7-foot” (6.2-inch aperture) speculum-metal mirror with which he discovered Uranus. 

While he used relatively wide fields (for that time period) and low powers (generally 400X or less) for his legendary sweeps of the heavens. However, for the Moon, planets and double stars…the unheard of magnifications of over 6,000 times were sometimes employed ! 

Despite his fame, many “or most” doubted his claims regarding the magnifications he sometimes used.  W.H. Stevenson actually measured 48…yes 48 of Herschel’s eyepieces and found that indeed his claims were valid. 

Focal lengths as short as 0.2-inches to just over 0.01-inch were found!  How Herschel ever managed to make them is somewhat of a mystery.  (He actually used 6,450x once on Vega and also again on Gamma Leonis.)

With the exception of reflectors, most of the classic observers of the past used refracting telescopes. I really don’t know when star diagonals first appeared, but all of the early observers were viewing “straight through” their scopes. 

For low declinations this wasn’t so much an issue but for objects high in the sky, or overhead, it was a neck and back breaker.  And this didn’t just apply to amateur observers, but professionals alike.

E.E. Barnard (Yerkes 40-inch), Aiken (Lick 36-inch) and Lowell (24-inch) all worked without diagonals.  In the more than 40 years I used the superb 13-inch Fitz-Clark refractor (see my the great lensnapping piece below) at Allegheny Observatory I never used one.

One of the problems is the mirror image views, of standard star diagonals, which plays havoc for measuring double star position angles among other issues. There are now, of course, correct image, known as “Amici Prism Diagonals” but early observers didn’t have them.

The most shocking example came to me when I realized that my dear friend and one of the greatest observers of all time, Leslie Peltier, never used a diagonal to make his more than 120,000 variable star estimates for the AAVSO. He used his 2-inch spyglass, 4-inch Mogey refractor, 6-inch comet seeker or his 12-inch Clark refractor. However, Peltier used only the 4-inch and 6-inch scopes for comet seeking, as well as variables.

Wally McCall and I first called attention to the strange behavior of the planetary nebula NGC 6826 in Cygnus in a letter to “Sky & Telescope Magazine” and was featured in the August 1963 issue. 

As seen in the 13-inch Fitz-Clark refractor at Pittsburgh’s Allegheny Observatory, it has a bright central star surrounded by an obvious nebula.  Staring directly at the star itself, the nebula disappears – but changing to averted vision the nebula reappears nearly drowning out the central star itself!  Alternating between direct and averted vision results in a striking blinking effect, so we named this object the “Blinking Planetary.”  We’ve seen this effect in scopes as small as a 2.4-inch refractor and as large as a 30-inch refractor.  A few other planetaries exhibit this behavior, but none anywhere to the degree as this one.

Now here’s the mystery: 

My idol Sir William Herschel (who discovered this object), nor his son Sir John nor any of the early classic observers like Smyth or Webb apparently ever noticed the blinking.  Has something changed in the nebula itself to shift its emission lines into a part of the spectrum where the eye is most sensitive since its discovery? Jim Mullaney

Roger, I feel sure that most of your readers are aware that the photons which we see by have a strange dualistic nature…they are both waves and particles.  This means that when you observe a celestial wonder such as those Roger writes about on this site with your telescope, you are getting photons within your eye.  

Think about it…particles that were once inside of the galaxy you are viewing have traveled across the vastness of space and time and ended their immense journey on the retina of your eye.  You are in direct physical contact with what you are looking at! 

As the poet Sarah Teasdale said:  “I know that I am privileged to be witness of such majesty.”

The “Great Lensnapping”

Roger, I don’t know how many of your readers have heard of the “Great Lensnapping” that happened at the original Allegheny Observatory in Pittsburgh in the late 1800s.  

My beloved 13-inch Fitz-Clark had it’s objective lens stolen and held for ransom.  At the time, it was the third largest in the world!  (Now it’s the third largest in the current Observatory.)   

Samuel Pierpont Langley was director at the time and refused to pay anything, as no telescope in the country would then be safe from theft.  He finally met the thief at a hotel in a Pittsburgh suburb – the thief agreed to return it if Langley didn’t prosecute.  He subsequently found it in a waste basket at that very hotel.  

The lens was pretty well scratched up and Langley sent it to Alvin Clark for refinishing.  Thus the dual name Fitz-Clark.  As I’ve stated before, it is without question the finest visual telescope I’ve ever seen or used bar none!

To read more and see a photo of the famous 13-inch Fitz-Clark refractor, see the following link:

This is the telescope that Wally McCall and I used for our visual sky survey in the mid-60’s that resulted in the Sky & Telescope series The Finest Deep-Sky Objects and its eventual Sky Publishing reprint that went through three printings.  My personal total eyepiece time logged using this amazing instrument over many years was some 10,000 hours!   It clearly showed markings on several of the Galilean satellites and spiral structure within Jupiter’s Great Red Spot.  One of the “discoveries” we made using the 13-inch was the “Blinking Planetary” in Cygnus (NGC 6826) which has become a favorite showpiece at star parties and public viewing sessions. 

“On Public Nights at Allegheny Observatory, when the dome of the 13-inch refractor is crowded with visitors, all anxious to look at everything in the sky, a handy finding list of impressive objects is invaluable.”

These words prefaced our short list of celestial showpieces published in the December, 1962, issue of “Sky and Telescope”.  We now present an expanded version, intended as a roster of the finest star clusters, nebulae, and other deep-sky objects, for the convenience of amateur astronomers with telescopes of all sizes.  It is the result of our five-year visual survey of the heavens north of –40º declination.

Al Nagler: 2017 Southern Star Astronomy Convention: Little Switzerland, North Carolina

Posted April 14, 2024 by rogerivester
Categories: Roger's Articles

I was so sorry to hear about Al Nagler’s passing:

It was the April 2017 Southern Star Astronomy Convention sponsored by the Charlotte Amateur Astronomers Club, when a scheduled speaker for the convention cancelled at the last minute.

I’m not a member of the Charlotte Club, but had helped them over a few years to fill speaker positions at Southern Star.

The Charlotte club officer in charge of Southern Star contacted me about finding a new speaker and asked if I could help in finding “the perfect” person to fill this now vacant position.

I knew that Sue and Alan French were attending NEAF at that time. So, I called Sue via cell phone, and asked if she would talk to Al Nagler and see if he was interested in being a speaker at Southern Star.

Al gave a fabulous presentation concerning “everything anyone would want to know” about eyepieces. I don’t think anyone would know more about the science of eyepieces than Al Nagler. The presentation, to say the least was excellent, and so much so, I even took notes.

Al Nagler and his wife…two great people!

I was able to talk with Al and his wife for extended periods during the event, and also enjoyed having lunch with them in the Wild Acres cafeteria.

Photo as following: Al signing my “1000+ The Amateur Astronomer’s Field Guide to Deep Sky Observing” by Tom Lorenzin at the April 2017 Southern Star Astronomy Convention in Little Switzerland, North Carolina:

The Robert Burnham Jr. Story And His Very Sad Ending, Also The Famous Handbooks

Posted April 11, 2024 by rogerivester
Categories: Roger's Articles

My work desk as following with a set of the handbooks, which I still us, but not as much as 20 or so years ago. I actually have two sets of the hardbacks.

The soft-backs are not very durable, especially if used outside, or even with lots of use indoors. Now just my opinion, but every amateur should have a set of Burnham’s in their home library and take them out frequently, and read some of the information. How any mortal being could put together such an amazing amount of work, with so much technical information and self-publish is nothing less than amazing!

Seems that Brian Skiff (astronomer at Lowell) at one time was contemplating a revised version of the handbooks. But, after a careful comprehensive review, “maybe before even getting started” he decided against. (I think I’m correct on this, or at least close.) I can’t remember all of the particulars, but I do remember (why Skiff might have chose not to….and seems the word he used was: Daunting!

For those of us that have been visual observers for at least the past 30 plus years “Burnham’s Celestial Handbooks” were and continue to be invaluable. 

Rather than attempting to write anything about Robert Burnham Jr. there is no need; as so much information can be found in the following links, or other places online.

I don’t think anyone has used the Handbooks more for both indoor and backyard use than Daniel. It was about eight or ten years ago when he sent me a photo of his “soft-cover” set.  They were so well-used that he fabricated steel rings to hold the pages and entire books together!

So, here are the photos that I saw, so many years ago. This is the way all astronomy reference books should look! Roger

The following quotes were taken from Daniel’s Cloudy Nights and personal emails.

Now some of my thoughts…using the handbooks: Roger

I have used the handbooks on many nights outside for reference, with my telescope. One night about 30 years ago, I remember so well using the photos from the handbooks to identify faint galaxies, NGC 147 and NGC 185. This was just one of the many times the handbooks assisted me in my observations.

Many consider the handbooks to be outdated…but not me.

Roger Ivester