The Shortest Day Of The Year In The Northern Hemisphere Is The Winter Solstice Or The First Day Of Winter. Measuring And Watching The Sun Shadow For An Entire Year…

Posted December 21, 2022 by rogerivester
Categories: Roger's Articles

My oldest grandson needed a college project for showing the altitude of the Sun, via the shadow. I made a simple solar device in my back yard, and John-Winston fabricated a similar one in his yard at Myrtle Beach. We compared views fairly often and discussed our results.

We (Sophie, Debbie and myself) made the following photos today at 12:00 noon (December 21st 2022) EST.

The (blue mark) represents the Sun Shadow (today) at “precisely” 12:00 Noon EST, December 21st. Note that the shadow is “almost” at the end of the scale. This shows or presents the shortest day of the year in the northern hemisphere, which is a very long shadow.

The (green mark) on the measuring tape at nine-inches…was made on the the first day of fall (September 22nd.)

The (white mark) presents the sun shadow on the first day of summer (June 21st) and the longest day of 2022, which shows a very short shadow!

This would “also conclude” that the sun is never “perfectly” overhead for our latitude which is +35º 18′ north.

The scale on the ground is perfectly level and aligned north-south. The shadow post of the solar device is at a vertical 90º.

Nova Sophia (Sophie) looking at the longest shadow with interest.

See photos below: Note the longest shadow, the blue mark, which was made on the first day of winter, the shortest day of the year.

During DST, the time of the measurements of the shadow should be made at 1:00 PM. During EST, the shadow measurement should be made at 12:00 Noon.

NGC 1245 Open Cluster In Perseus: January 2023 Observer’s Challenge Report #168

Posted December 15, 2022 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

Iota Cassiopeia – Triple Star: December 2022 Observer’s Challenge Report #167

Posted December 4, 2022 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

December:  Iota (ι) Cas  Triple Star  Cassiopeia; mag=4.6;6.9;9.1; Separation: 2.9″, 7.1″

RA: 02h 29m;  Dec: +67° 24′  

December 2022 Observer’s Challenge Report .pdf final as following:

The Worlds Tallest Thermometer In Baker Was Built To Commemorate What Happened In Death Valley, California On July 10, 1913

Posted November 24, 2022 by rogerivester
Categories: Roger's Articles

My son and granddaughter make frequent trips from Las Vegas to Los Angeles, traveling through Baker, California, via I-15 which crosses the desert.

Baker is best known for having the tallest thermometer in the world at 134 feet, and considered the gateway to Death Valley.

The thermometer was built to commemorate the “official world record” setting temperature of 134º F, set in nearby Death Valley (Furnace Creek) on July 10, 1913. Yes, the hottest temperature on the planet earth, and a record that stands to this day.

Brad and Zoe took the following photo of the thermometer during a trip on Tuesday, November 22, 2022. The temperature as shown on the thermometer at the time they were there….was a cold 30º F.

Surprising! It gets cold in the desert also!

Roger Ivester

NGC 7184 Galaxy in Aquarius: November 2022 Observer’s Challenge Report #166

Posted November 17, 2022 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

Final .pdf report as following:

IC 342: Galaxy In Camelopardalis, Difficult For The Visual Observer Without A Dark-Site

Posted October 26, 2022 by rogerivester
Categories: Roger's Articles


Mario Motta:  Observer from Massachusetts

This is a very difficult object visually, very faint surface brightness, due in-part to its large size and attenuation from outer spiral arms.The following image was made using my 32-inch f/6.5 telescope, with ASI 6200 camera. Total of 40 subs 5 minutes each,of Lum, R,G,B filters, and then 50 minutes of H alpha as well to bring out the surprisingly large number of H alpha regions you can see. Processing in Pixinsight, used especially modern processing techniques of Starnet 2, that allows “removing” foreground stars to enable processing the faint background, then adding the stars back in. (without this, nearly impossible to process properly).

Roger Ivester:  Observer from North Carolina

IC 342, is a faint galaxy in Camelopardalis, and can be very difficult for the visual observer, due in-part to the low surface brightness and large size, requiring a dark sky with excellent transparency.  

I made all observations with a 10-inch reflector from my moderately light-polluted suburban backyard.  On a 5.0 NELM night, I located and observed this galaxy rather easily.  A chain of six stars, with an orientation of NW-SE, lies a few minutes SW of the faint core. 

This galaxy is best observed with low to medium magnification.  I used 114x for the following pencil sketch. The 10-inch presented IC 342 as little more than a large faint glow without structure.  A faint and small core could be seen with averted vision, with the absence of visible detail being attributed to the lack of a dark site, which reduced the contrast significantly.  

On a night of lesser seeing and transparency, I was unable to see this galaxy with my 102mm refractor.

James Dire:  Observer from Illinois 

IC 342 is one of the most unique galaxies in the heavens due to its orientation, size and brightness. It’s a face-on spiral galaxy approximately 20 arc-minutes in diameter and glows at mag 9.67. Because of its size, brightness and orientation, it’s very hard to see visually. It spans only 1/3 the distance across as the face-on spiral M33 in the constellation Triangulum, which is 35 times brighter.  So M33 is easier to see in a telescope.  

IC 342 has about the same total luminosity as M100, a face-on spiral galaxy residing in Coma Berenices, however, since it spans three times the diameter as M100, but M100 is much easier to see visually. 

The only face-on spiral galaxy with the same angular size that comes to mind is M101 in Ursa Major.  However, M101 is 5 times brighter, so big light buckets reveal M101’s spiral arms with much greater ease. 

IC 342 lies in the northerly constellation Camelopardalis.  It is slightly southwest of the midpoint between two mag. 4.5 stars, Gamma Camelopardalis and BE Camelopardalis. The two stars are 5.75° apart

To see IC 342 in its splendor requires a long exposure with an astronomical camera. The galaxy is classified as a weakly barred and loosely wound spiral galaxy. 

The Hubble classification SABc. (S means spiral, AB means weekly barred, and c means loosely wound spiral arms). In barred spiral galaxies, the spiral arms usually originate at the ends of the bar. On IC 342, there appear to be two spiral arms originating from each end of the galactic bar. The arms tend to fan out as one traces them away from the bar. My image of IC 342 as following, was taken January 6, 2010 at the Wildwood Pines Observatory in Earl, NC. 

I used an SBIG ST-2000XCM CCD camera, operating at -20°C, attached to a 190mm (7.5-inch) f/5.3 Maksutov-Newtonian telescope. The exposure was 60 minutes.

Sue French:  Observer from New York

“Deep-Sky Wonders” P-15.

“….105mm scope at 28x, this pretty galaxy is a vaporous phantom spangled with faint stars.  It appears oval, its long dimension running north and south with a 12′.  From a dark-sky site with his 105mm refractor, noted observer Stephen  O’Meara has been able to trace out IC 342’s three main spiral arms.” 

The following pencil sketch was made using a 10-inch reflector at 88x.

Christian Luginbuhl and Brian Skiff: “Observing Handbook and Catalog of Deep-Sky Objects”

“….Large galaxy is relatively easy to see in small apertures at low powers. In 6 cm it is a faint blob north of a loose clustering of stars.”

“…25 cm a string of six stars runs SE-NW through where the object is seen in 6 cm.”

M39: Open Cluster In Cygnus – October 2022 Observer’s Challenge Report #165

Posted October 19, 2022 by rogerivester
Categories: Work File Only - Observer's Challenge Reports

Complete Report: Click on the following link:

A Tribute To My Mom And Dad For Both Mothers And Fathers Day And With Important Stories

Posted October 14, 2022 by rogerivester
Categories: Roger's Articles

Warren D. Ivester: (1913-1986) Ruby Whisnant Ivester (1919-2006)

My Daddy loved sports cars.  The following blue convertible is a Fiat 124 and the orange one (second photo) is a very rare Datsun Fairlady.  He also had a couple more European cars, which was another Fiat and a French Peugeot.

My Dad had an engineering mind with an ability to improvise a mechanical fix when he didn’t have the necessary parts. This was especially true as related to cars which were always his passion. In the early days, I remember him cutting copper-shims and placing underneath engine bearings rather than using new bearings. However, this was a common practice during the early years and even into the 60’s.

When my Dad was born it was only 10 years after the Wright Brothers made their first flight in December 1903, lasting only 12 seconds. And one year after the Titanic sank on April 12th 1912.

He would later begin working as an auto-mechanic, and would work for himself at times and then at many different garages over the coming years.

However, if my Dad had taken this job, it would have for certain changed the trajectory of my family, and It could have been beneficial to the family finances for sure.

It could have been really good for me also: As I needed my own bicycle, a serious astronomical telescope, a Lionel electric train, and other essentials that kids needed in those days. 🙂

When engineers were trying to figure out how to move the Cape Hatteras Lighthouse further inland, away from the ocean, I remember my dad having his own thoughts. The Outer Banks of North Carolina are very unstable land masses and constantly changing.  His thoughts were as following, and I remember hearing him say the following, on a number of occasions.

“……it needs to be lifted up using the same principle as moving a house, then installing a massive rail-system underneath. The rails would extend the entire distance to be moved, or to its new and final resting location. The lighthouse would have to be moved very slowly, maybe only inches a day, which would allow very close monitoring of the process.”

Well…this was pretty much the exact way the famous lighthouse was moved.

I made the following photo in April 1982 of the lighthouse in its original location, before being moved. Note how close the lighthouse was to the beach and ocean. Moving this massive structure was definitely an engineering marvel.

___________________________________________________________________________________

Ruby Whisnant Ivester:

She was very intelligent, excellent in math, very artistic, beautiful handwriting and well read in so many subjects. And this was many years before the internet. She would purchase one encyclopedia every month from the Shelby Winn-Dixie. We would get our groceries at Winn-Dixie, on either Friday nights or Saturday afternoons and most of the time I’d go. Our house was about 15 miles from Shelby, and we called this…going to town.

We received the National Geographic magazine, for about ten years, from about 1960 to 1968. With the addition of our grocery store encyclopedia’s, what more could we possibly need to learn about everything? My Uncle Boyd and Aunt Shelley who lived in Virginia gave the National Geographic magazines, to me and my brothers, in those early years. I remember being excited when the magazine came to our FFA (Future Farmers of America) concrete pedestal mailbox, each and every month. One of my brothers made the mailbox at Polkville School, and brought it home on the school bus.

I sent off for a free stamp coin collection, or maybe it was all for a dime I’d sent them. Then I started receiving more and more (worthless) international stamps and more and more books. The company was located in Garden City, New Jersey. I then received a bill for $35. But, what to do? I just ignored the letter, but a month or so later they sent me a serious legal letter.

They advised me to seek legal counsel, as they would be sending their attorney to meet with me and my attorney in Shelby, NC, within the month. But my stamps/coins and books were suppose to be free…or covered by the dime I’d included in the envelope!

She quickly looked in our “savings” drawer and counted out $35 and put in an envelope. I’ll never forget the both of us cramming the stamps and books into a box with the money. Yes…cash in an envelope and sending to a bunch of shysters in New Jersey!

Relief! My life was saved! My Mom just couldn’t let her her youngest son go to prison for $35. The real criminals were the folks at the stamp and coin mail order company. (Note: Many years later, a law was passed by Congress, that allowed people to keep anything they didn’t order.) And I didn’t order boxes of books stamps, cheap aluminum coints and worthless books! Considering inflation, the $35 would be equivalent of $366 as of 2025. And my family needed this money!

When I was in about the 1st-4th grades (~1960-1963) she would work at a sewing company in Cherryville, and would ride with some of her friends in the area, who also worked there. My Mom would never have a drivers license. During periods when she was not working, she loved to watch soap operas, which she called “the stories.” She would talk with a few of her local friends on the telephone about the stories as if they were real. One thing for certain….she loved her family.

My mom also taught me so much about the Bible when I was really young, which inspired me to read the Bible, and my belief in Jesus Christ. I would begin to read the Bible on a regular basis, and had a couple that were given to me by my church. However, my favorite was a small Bible given to me at Polkville School, by the Gideons. Somehow at 11 or 12 years old, I managed to memorize the entire 34th Psalm. This is an amazing Psalm that says so much.

I remember so well, my Mom reading to me: Luke 16:19-31 KJV: She talked with me about Hell and eternity and said: “Can you imagine, constant torment that never ends?” Even at a very young age, this for sure caught my attention!

Page 2:

The following is the story for easier reading. Only a few spelling changes were made and paragraphs for easier reading.

The 8-Inch “Orange Tube” Schmidt-Cassegrain f/10 Telescope, Founder Tom Johnson, And Other

Posted September 26, 2022 by rogerivester
Categories: Roger's Articles

I pulled the following photo of (Leonard Nimoy) “Spock” and his “Orange-Tube” 8-inch Celestron Schmidt-Cassegrain telescope, from Phil Harrington’s vintage telescope advertisement post.

This is the telescope, that changed the world of amateur astronomy, with its introduction in 1970.    

http://www.philharrington.net/old50.htm 

Amateurs wanted a more compact and portable telescope, and the 8-inch Schmidt-Cassegrain f/10 fit the bill.  I’ve owned two SC scopes over the years, but for me, I still like the simplicity of a Newtonian Reflector, despite the bulk and weight. And should a problem present itself, there is always an “easy fix” maybe not so much so with a Schmidt-Cassegrain or Maksutov-Cassegrain.

However, the Schmidt-Cassegrain telescope is the choice of telescope for many amateurs, for their own personal reasons. I’d suggest mostly for portability, and astrophotography.

Newtonian Reflectors:

It’s my opinion, a 10-inch “equatorially mounted” (solid tube) reflector, is the largest reflector that can/could be considered portable.  And that’s a stretch, as I have a very heavy 10-inch EQ reflector (solid tube) so this is based on my experience.  

However, this is not the case for a Dobsonian design, as many take 20 to 25-inch Newtonian’s, and sometimes “even” larger to star parties on a regular basis.  But for me, I was always happy for someone else to bring such a large telescope. 🙂

My experience with a 20-inch Dobsonian: 

I’ll never forget being at a star party near Blowing Rock/Boone, North Carolina, and climbing a “really” tall ladder, to observe through a 20-inch Dobsonian.  To make things worse there was a 15 to 20 mph wind, and “of course” in total darkness.  I couldn’t wait to get back on ground, and decided my 10-inch reflector was all I needed!  I just never thought astronomy should be a hazardous hobby, even greater than road cycling!

I’ve always preferred the simplicity of both a Newtonian and refractors:  

For me, growing up looking at big Cave Newtonian’s (advertisements) and other brands, with massive German design equatorial mounts, was what an astronomical telescope should look like.

We can never escape our early years, and thoughts.

Roger Ivester 

The following is an excerpt from Wikipedia, concerning Tom Johnson and Celestron telescopes. 

…..Johnson, who had a strong interest in amateur astronomy, originally created Celestron as the “Astro-Optical” division of Valor Electronics in 1960.[2][3] Around 1960, Johnson had been looking for a telescope which could be used by his two sons, but found no such child-friendly models on the market at the time.[2] Johnson built a new telescope, a 6-inch reflector telescope, by himself, in 1960.[2] He was visiting his brother in Costa Mesa, California when he came upon his nephew, Roger, trying to grind the 6 inch diameter lens he purchased from the clearance table at a local hobby shop. Roger was tired of the project and offered the lens-grinding kit to his uncle. Thomas Jasper took the kit home and after several days of hand grinding, he invented a machine that would grind the lens for him. Thus, by accepting the lens grinding kit from his nephew, Roger L. Johnson, “TJ” (as the family called him) created that first lens of many.

On July 28, 1962, he publicly unveiled a new invention, a portable 18+34-inch Cassegrain telescope, at the party held by the Los Angeles Astronomical Society on Mount Pinos.[3] The new transportable telescope proved so groundbreaking that Johnson’s invention was featured on the cover of a 1963 issue of Sky & Telescope.[3]

Johnson’s interest in telescopes soon became a full-fledged business.[2] Johnson’s new company, Celestron, which descended from the “Astro-Optical” division of Valor Electronics, soon began selling more sophisticated Schmidt–Cassegrain telescopes in models ranging from just 4 inches to 22 inches.[2] However, the Schmidt–Cassegrain telescope proved difficult to mass-produce because the models needed Schmidt corrector plate, an advanced aspheric lens, which could be hard to manufacture.[2] To solve this production problem, Johnson and the company’s engineers invented a new type of telescope, the Celestron 8, in 1970.[2] The Celestron 8 was more compact, affordable and easier to manufacture than traditional telescopes, like the Schmidt–Cassegrain.[2] Johnson’s new telescope proved very popular in the amateur astronomy and educational industries, allowing the hobby to rapidly expand and reach more consumers.[2]

Johnson sold Celestron in 1980.[2]

NGC 6751 Planetary Nebula In Aquila: September 2022 Observer’s Challenge Object: #164

Posted September 23, 2022 by rogerivester
Categories: Work File Only - Observer's Challenge Reports