Posted October 21, 2023 by rogerivester Categories:Roger's Articles
1971 class reunion: October 11th 2025: And a great time was had by all! It was a breezy (windy) and really cool Saturday afternoon.
The 2023 event follows 2025….just keeping scanning down.
I missed getting a “face-on” picture of Debbie. How was that possible? So, I thought I’d just share a photo of Debbie and Sophie from May 2025.
Photos of the 2023 Burns High School class reunion are as following: Much appreciation to Charlotte Sinclaire for taking the lead in organizing this fabulous event. Everything was perfect! A memorable class reunion for sure.
In the following photo…Five guys began 1st grade at Polkville in August 1959, and graduated together at Burns. We were the first class at the new school, and went all four years.
However, after the 5th grade, some of us parted ways for three years, some went to Casar and some went to Piedmont…but back together again at the new Burns High School in the fall of 1967.
Left to right: Charles Melton, Roger Ivester, Rob Pendleton, Bill Ledford and Don Bridges.
Comments:Comments Off on 1971 Burns High Class Reunion: Saturday October 11th 2025 At Hanna Park In Shelby, NC. The 2023 Event Is Also Included: Just Keep Scanning Down
Posted October 19, 2023 by rogerivester Categories:Roger's Articles
Bortle Dark Sky Scale:
The Bortle Dark Sky Scale was developed by John Bortle “based on nearly 50 years of observing experience,” to describe the amount of light pollution in a night sky. It was first published in a 2001 Sky & Telescope article.
Depending on the device you are using, it may be necessary to slide the chart to the right to see in its entirety.
Number Code
Map Color Code
Label
Sky Mag.
Naked Eye Limit Mag.
320mm Limit Mag.
M33 visible?
M31 visible?
Central Galaxy visible?
Zodiacal light visible?
Light Pollution
Clouds
Ground Objects
1
excellent dark sky
22.00–21.99
≥ 7.5
> 17
obvious
.
casts shadows
striking
airglow apparent
.
visible only as silhouettes
2
average dark sky
21.99–21.89
7.0–7.49
16.5
easy with direct vision
.
appears highly structured
bright, faint yellow color
airglow faint
dark everywhere
large near objects vague
3
rural sky
21.89–21.69
6.5–6.99
16.0
easy with averted vision
.
complex structure
obvious
LP on horizon
dark overhead
large distant objects vague
4
rural/suburban transition
21.69–20.49
6.0–6.49
15.5
difficult with averted vision
obvious
only large structures
halfway to zenith
low LP
lit in distance
distant large objects distinct
5
suburban
20.49–19.50
5.5–5.99
14.5–15.0
.
easy with direct vision
washed out
faint
encircling LP
brighter than sky
6
bright suburban
19.50–18.94
5.0–5.49
14.0–14.5
.
easy with averted vision
visible only near zenith
.
LP to 35°
fairly bright
small close objects distinct
7
suburban/urban transition
18.94–18.38
4.5–4.99
14.0
.
difficult with averted vision
invisible
.
LP to zenith
brilliantly lit
.
8
city sky
< 18.38
4.0–4.49
13
.
.
.
.
bright to 35°
.
headlines legible
9
inner city sky
.
≤ 4.0
.
.
.
.
bright at zenith
.
.
My view to the east (last night @ 9:15 PM, November 18, 2023 from my back deck) showing the light pollution at about 15º above the treetops.
I always try to observe deep-sky objects at least one hour or two from the meridian.
It is difficult to see the Pleiades “visually” at this low altitude. I was using an iPhone 14 “handheld” to make a photo for illustrative purposes.
The Pleiades was my first deep-sky object when I was 12 years old. I remember so well, walking out in my front yard in about mid-November and seeing this cluster rising above the treetops.
At that time, I had no clue as to what this group of stars were.
A year or so later I found out it was the Pleiades, M45 and my interest in amateur astronomy began, which continues to this day. Interesting to note: This was Leslie Peltier’s first deep-sky object also, as probably so many others.
The following photo:
Andromeda is difficult for me visually, and requires averted vision.At the meridian, it can be fairly easy, but averted vision still works best.
The following photo using my phone, presents the galaxy quite a bit brighter than naked-eye.
So, I estimate the Bortle Scale from my backyard to be ~6.5. I think we can all agree, the Bortle scale is not a definitive number, but using this criteria can describe an observing site pretty accurately. I’d say John Bortle developed an excellent, simple and objective measurement system for judging different observing sites, and for comparison with others.
Comments:Comments Off on Light Pollution Is Increasing Everywhere. What Is The Bortle Scale? Use The Following Chart To Determine How Dark Your Observing Site Is
Posted October 16, 2023 by rogerivester Categories:Roger's Articles
Meade introduced their Deep-Space telescopes in about the early 1980’s which caught my eye in magazine advertisements.
I was looking for something larger than my 4.5-inch reflector which I was using at that time.The Deep-Space series consisted of two telescopes: A 10-inch and 16-inch f/4.5 telescopes with equatorial mounts.
This was at a time when Meade was building their serious Newtonian’s in their Costa Mesa, facility, which included grinding and polishing mirrors. All of the hardware, bolts and Allen heads on these telescopes and mounts are SAE (Society of Automotive Engineers) and not metric.
Meade, at about this time had just built a state of the art facility in Irvine, California. They were building their Schmidt-Cassegrain telescopes (complete) including the mirrors, coring and the mounts. And at this time they began to make their full line of high-quality refractors with ED glass. This included their German EQ style GoTo mounts, and also the Meade ETX Astro 90mm Maksutov-Newtonian telescopes.
The ETX 90 was a novel idea: To build an incredibly low priced high-performance telescope with all the money and effort going into the optics. The base and arms were made of plastic, but the optical tube was beautiful anodized aluminum.
The ETX 90’s (the ones built in California) indeed had excellent optics. I purchased one shortly after they were introduced, and can attest to the quality of the optics. The later ones that were built in China and Mexico might have been equally as good, but never had the opportunity to test one.
Meade would later send all manufacturing to China and Mexico. Meade, began having quality issues and customer service became nonexistent. However, as a disclaimer (this information is from hearsay) or from online, or other articles. This might be considered the beginning of the end for a former great American company that was started in 1972 on a kitchen table. Orion Telescopes and Binoculars, would later purchase Meade, but would declare banruptcy a few years later.
The following is a Meade advertisement from almost 40 years ago as of 2024:
My local astronomy club (at that time) had a DS-16 which was a two-person job to set up. I could take the 16-inch and use at any time. However, this thing was a monster, and where would I store this behemoth of a telescope? I didn’t and still don’t have a permanent observatory, and how would I set it up by myself? The 16-inch was definitely not for me! The 10-inch seemed to be the perfect larger aperture telescope and with an equatorial mount. I had always liked the simplicity of a Newtonian, and an equatorial mount was a must.
Astronomy Magazine test and evaluation:
Astronomy Magazine tested a 10-inch DS-10A (The 10A was an updated version with a 2-inch focuser, setting circles and RA drive) with Astronomy Magazine giving the test mirror a rating of a B+.
So, in February 1992, I purchased the 10-inch from Pauli’s Wholesale Optics, in Danbury Connecticut. It was Fred (the owner of Pauli’s) that recommended this telescope.
And now with over ~2,000 hours under the night sky and over 1,500 deep-sky pencil sketches and even more observing notes. I made the right decision and 33 years later as of 2025, I continue to use and enjoy this telescope, which is still in pristine condition. (See the photo below)
I have spent over ~2,000 hours at the eyepiece as of 2025. This would be the equivalent to 50 weeks working a job at 40 hours per week, which makes for a good prospective or comparison.
My other telescopes include a 102 mm refractor, 6-inch f/6 reflector, 80 mm f/5 refractor, Celestron 76 mm reflector First Scope (anniversary edition) and a couple others.
Shown below is the original mount, which I use when observing deep-sky objects that can’t be observed from my back deck. Only objects greater than +05º north declination (my house gets in the way) and allows me to use the Celestron CGE-Pro mount. It’s just not portable enough to use beyond my deck. Southern objects require that I use the original Meade mount, which I consider very portable.
The original medium-duty EQ mount:
For efficiency, I use both the RA and Declination circles to get me within ~1/2º degree of my target. At this point, I use a star atlas to zero in on my deep-sky object. Note the 6-inch Parks Optical declination circle and a fabricated index pointer.
The low pedestal mount is perfect for use with an astro-chair, when making observing notes and pencil sketches at the eyepiece. As for me, it’s impossible to observe and sketch while standing.
The original mount as pictured below is a medium duty mount, but is remarkably sturdy, due in-part to the very short pedestal. After spending so many years star-hopping to locate deep-sky objects, my favorite mount to use is the Celestron Pro mount, which I’ve had for only eight or so years. Again, can only be used for objects +05º north declination and greater, due to my house.
Both mounts, side by side for a comparison:
The Celestron mount is too large and heavy to take in and out of the house, so this Rubbermaid shed on my deck works well for storage. I also cover (inside the shed) the mount with a soft blanket and a piece of auto-marine fabric for extra protection.
The original mount is fairly easy to carry in-and-out, and can be stored in the corner of an extra bedroom.
A sample of a few of my sketches, using only a pencil, and a 5 x 8 blank notecard. My “humble sketches” are all raw sketches, as they appear to me through the eyepiece, without any computer enhancements. I try to make my sketches as accurate as possible, with any embellishing.
IC 5146 “The Cocoon Nebula” In Cygnus
NGC 2024 Nebula in Orion
M42: Orion Nebula Complex
M106 Galaxy in Canes Venatici
NGC 3079 Galaxy in Ursa Major
Messier 20 In Sagittarius
Messier 85 and NGC 4394
Comet Hale-Bopp: Charcoal pencil on black card stock, showing all three-tales; the gas tail, dust and anti-tail. April 1997
Messier 81 with spiral arms
NGC 7479 Galaxy in Pegasus
The Rosette Nebula
NGC 5689 Galaxy in Bootes
Messier 33
My wife (on occasion) uses the 10-inch to take photos of the moon:
Comments:Comments Off on Meade Deep-Space Telescopes Manufactured From The 80’s Through The Early 1990’s
Posted October 12, 2023 by rogerivester Categories:Roger's Articles
I continue to ride, but “absolutely certain” I’ll not be able to ride another 100,000 miles. My rides in recent years are quite a bit shorter and much slower, but more fun.
Comments:Comments Off on October 11, 2023: 15 Years Ago I Achieved My 100,000 Miles With A Celebration Following At The Broad River Coffee Shop. I Appreciated Debbie Putting It Together…
Posted October 9, 2023 by rogerivester Categories:Roger's Articles
Date: October 9th 2023:
I’ve went from an 80mm f/5 refractor to this 10-inch Newtonian in just a matter of days. So, I’m proud of the progress I’ve make, from never using a camera with a telescope, to “at least” an image of the moon. And all within a week!
I changed some settings on my camera, something I’d never done before. It had been set on ISO 100, for my everyday snapshots, and changed to ISO 400this morningfor this moon shot.I was amazed how much brighter the moon was when focusing through the camera using this 10-inch versus the 80mm refractor.
For sure a lot easier to focus with the brighter view due to the size of the telescope.
The field using this telescope is really narrow and small as this photo shows. Now I’ve got to figure out how to set the “exposure time” for some small and bright deep-sky objects.
I’m actually amazed that I could do this...and hopefully more and better to come. Debbie
Comments:Comments Off on Another First For Me: Using A 10-inch Newtonian f/4.5 For A Photo Of The Waning Crescent Moon At 6:00 AM This Morning: By Debbie Ivester
Posted October 5, 2023 by rogerivester Categories:Roger's Articles
Telescope: 80mm: 400mm Focal Length: f/5
Camera: Nikon D3300
Nikon T-Adaptor
Camera Setting: Manual
Vixen GP Equatorial Mount
The following photo was made after sunrise
Nikon T-Adaptor
I also made a photo as following using a 10-inch f/4.5 EQ telescope. Roger had using this telescope during an early morning 4:00 AM observing session of a galaxy. So, before bringing it back into the house, he suggested I try a moon photo with this telescope. This is my photo.
Comments:Comments Off on My First Moon Photos Using A DSLR Camera, And How I Made Them: By Debbie Ivester
Posted September 23, 2023 by rogerivester Categories:Roger's Articles
The following solar project wassuggested by Tom English:
Place a straight pole into the ground, facing due south, and at an angle of 55 degrees:
Then on the two equinoxes (the first day of spring, and the first day of fall) the sun will cast no shadow, as the sun will be shining directly down the steel rod.
Note: Tom was formerly an astronomy and physics professor at Gardner-Webb University for many years, but now teaches in Greensboro. However, we still stay in touch.
During more than a decade, we spent many nights in my backyard with telescopes, enjoying observing galaxies, nebulae and star clusters. Tom would often bring an 8-inch Celestron Orange-Tube SC telescope, and we’d compare views with my 10-inch Newtonian.
So, on June 21st, 2023 (Summer Solstice) the shadow will cast its greatest extent southward, and on the Winter Solstice (December 22nd 2023) the shadow will cast its greatest extent northward on the stick.
My latitude in North Carolina: The Latitude is 35º 15 mins
So a simple calculation to determine the angle of the rod.
(90º – 35º) = 55º
Debbie using an angle finder to determine 55º.
The angle of the rod is toward the South at 55º. So draw a line, with the post, going South to North.
Note the shadow: It will be increasing, each day, and getting shorter, until September 23rd, when there will be no shadow, as the sun will be “pointing directly down” the rod.
At 1:00 PM EDT, today (September 22nd) a photo was made, and indeed showing no shadow, as the sun was shining directly down the steel rod.September 22nd or 23rd…close enough.
The following photo:
The yellow mark indicated the sun shadow on August 24th, and the position of the sun shadows on different days following.
The red mark was made on October 4th.
The black mark was made on October 13th 2023.Note the rapid movement of the sun heading south in less than two weeks!
Note: The crossbar on the rod is for pushing in the ground with my foot, and nothing more.
Comments:Comments Off on The First Day Of Fall, But What Does It Mean? On September 23rd, 2023 The Sun Begins Its Annual Trek Back Toward The Southern Hemisphere. This Changes The Angle Of The Sun, Cooling The Northern Hemisphere, Leaving Summer, Bringing Cooler Weather And Then Winter.
This was taken with my 32-inch telescope with NB filters (Ha, O3, and S2). Central star prominent, nice detail in the outer nebula.
This is a very bright small planetary in Delphinus, so my exposures were very short at 40 seconds for the Ha and O-III. Total imaging about 1.5 hours.
ZWO ASI 6200 camera, processed in pixInsight.
Roger Ivester: Observer from North Carolina
NGC 6891
Planetary Nebula In Delphinus
Date: August 17th 2023
Telescope: 10-Inch f/4.5 EQ Newtonian
Sketch Magnification: 256x
Field of View: 0.25º
Location: 4.8-5.0 NELM Suburban Backyard
August 17th 2023: Small, well-defined bluish disc, with a faint central star.
August 16th: 6-inch f/6 Newtonian at 127x. Very small, appearing mostly as a star, but with a faint halo, and fairly difficult to determine from the star-field.
Comments:Comments Off on NGC 6891 Planetary Nebula In Delphinus: September 2023 Observer’s Challenge # 176
Posted September 3, 2023 by rogerivester Categories:Roger's Articles
Cocoon Nebula in Cygnus: Very faint and difficult, but with patience and a “reasonably” dark-sky it’s possible. Look for the tiny star chain, just to the NE and you know, you’re close to the Cocoon.
Comet Hale-Bopp With All Three Tails Being Sketched: The Gas Tail, The Dust Tail and The Anti-Tail. Chalk sketch on black card stock.(March 1997)
10-inch EQ f/4.5 Newtonian Telescope: Nine Galaxies in a 1/2º Field-of-View, around M84 and M86
Comments:Comments Off on Visual Observing And “Keeping The Ancient Art Of Pencil Sketching Alive.” The Following Sketches Are A Sampling Of What’s Possible With Nothing More Than A Pencil And Pad
Posted August 28, 2023 by rogerivester Categories:Uncategorized
If you’ve never attempted this faint galaxy cluster, give it a try this October or November. I’ve never been able to see this small group of galaxies from my suburban backyard, with a 10-inch Newtonian.
I’ve seen this galaxy group with a 14.5-inch from a dark-site, but unfortunately without observing notes or a pencil sketch. Unfortunately, on that night it was freezing cold with a 15 mph wind, and my hands were freezing!
Image credit: Mario Motta using a 32-inch telescope:
Comments:Comments Off on An Article From the Astronomical League, Reflector Magazine For September 2023: “The Deer Lick Galaxy Group” And How It Got its Name
Recent Comments