I’ve been having to reset the time or clock on my Celestron CGE-Pro equatorial mount before observing. I just recently found out from others, there is a CR2025 battery that requires changing from time to time.

Celestron calls for a CR2025 as a replacement battery.

Re: Replacing the internal battery in a Celestron CGE-Pro Equartorial Mount from Celestron online, as following:

The battery is located under a clip on the PC > Autoguide > Power Cord board inside the pier. Replace with a 3-volt CR2025, available at many drug, photo, and hardware stores.

It’s actually a fairly straight forward process, but “can be” time consuming.

There are a lot of electronics surrounding this battery…so you don’t want to damage your mount electronics due to an inexpensive leaking battery.

The bolts that hold this top cap are Allen heads requiring a 5.5 mm wrench. Seldom do I find any application, involving telescopes, high-end precision bicycles or other that require half sizes, but this is no problem.

The following plate was a bit difficult to remove. It was “stuck” and required attempting with several techniques before finally getting it out. It had drops of silicon in several places along the edge, which had to be removed and cleared before removing the aluminum plate.

I found that using Allen wrenches “to hook under the two larger holes” in conjunction, and then pulling up was successful.

Use care as not to damage the plate, or some of the ribbon wires, located just underneath the plate.

When installing the new battery, I used “nitrile powder-free gloves” to avoid getting finger oil or grease on the battery.

Remove the old battery, insert the new one, and then reassemble the mount, connect the Dec and RA cables and you’re all finished.

However, everything related to time and dates will have to be changed via the hand controller.

Storage:

I had set the clock, and checked all other specifications during this afternoon. However, last night when performing the alignment process, the mount couldn’t even find Vega, just overhead. And could not perform any two or three star alignment.

So finally, after at least an hour of frustration…I did a “complete factory reset” and reentered all necessary information which resolved the problem.

Note: After the battery change, the time is perfect, each and every time.

The story how a very small mountain town in western North Carolina became very important to the world of professional astronomy, with it’s contribution to the making of the first 200-inch Palomar Telescope Mirror. And most importantly, as of current all electronic devices use chips made from the ultra-pure quartz from Spruce Pine. Roger Ivester

I’m posting the following “brief excerpt” from a published article by David Biddix of Spruce Pine:

Description: Spruce Pine, North Carolina, a small town in the western part of the state, has a storied history related to astronomy instruments. The Spruce Pine Mining District, a geographical area that features significant deposits of mica, feldspar, and quartz, has played a significant role in astronomy for the past 80 years. The mirror in the 200 inch Hale Telescope at Palomar Mountain is made from quartz mined in the District in the 1930s. Today, all electronic devices including computers, televisions, cell phones, mp3 players, and other gadgets owe their existence to ultra-pure quartz mined near Spruce Pine. In this podcast, you’ll learn how this down-to-earth small town helps astronomers reach for the stars.

Bios: David Biddix is a local historian who has published two books in Arcadia Publishing’s Images of America series with co-author Chris Hollifield: one on Spruce Pine, North Carolina and one on Little Switzerland, North Carolina. He was born and currently lives in Spruce Pine. David’s interests include amateur radio, astronomy, and history.

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….

David Biddix: Spruce Pine, North Carolina

Note: The following photo of the (Chestnut Flats Mine) where the quartz for the 200-inch Palomar mirror was mined, is now closed and privately owned.  Roger Ivester

My personal quartz specimens as following from the Spruce Pine mining district:

Historic photo of the mine from days past. Photo credit: Mitchell County Historical Society

 

Kenneth was one of the most talented people I have ever known. He previously worked at the hospital as a pulmonary technologist, former music shop owner, a master carpenter and was a perfectionist in everything he did.

Ken could play musical instruments and write songs. He was a combat veteran in Vietnam, a battlefield medic…surviving explosions, bombs and bullets. He never told me what wounds he attended to, but I figured if he wanted me to know, he would have told me.

He will be missed by his family and all of his friends, and I’m so fortunate and privileged to have been able to call Ken, my friend.

We spent many Sunday’s in church together and afterwards shared lunch at KFC/Taco Bell, Ken & Mary’s, or Shelby Cafe with his wife, Bonnie and my wife, Debbie.

I’m also including a YouTube video of the Battle of Cam Lo, by Ken to honor Larry Maxam who was killed during this battle. 

Kenneth wrote and sings the song in the video.

Again, Kenneth wrote and sings in the following video.

Beginning in (2022) my oldest grandson, needed a project to show the movement of the sun over a period of time….if possible an entire year. However, despite living more than 200 plus miles apart, we both made similar “solar devices” to measure the suns shadow, beginning on the Vernal Equinox (March 20th 2022) and beyond.

The following photo:

The yellow tape mark on the right side of the scale shows the sun shadow on the 2022 Spring Equinox. (This was my first measurement)

The white tape was placed on the first day of summer (June 20th 2022) which shows the longest day of the year. Note: the sun is not directly overhead using this method, as the shadow indicates.

The blue mark was placed on the scale, on the shortest day of the year, December 21st 2022, which is the longest shadow of the year for 2022.

A second way to measure the suns shadow, by Tom English.

I thought of a variation that I might try someday:  Put a straight pole into the ground, facing due south, and at an angle of 54 degrees (for you it would be 55 degrees)

Then on the two equinoxes it would cast no shadow at local noon. 

On the June solstice the shadow will cast its greatest extent southward, and on the December solstice the shadow will cast at greatest extent northward of the stick.

Roger Ivester

My latitude is 35º 15′

(90º – 35º) = 55º

Debbie using an angle finder to insure the proper angle is at 55º.

The angle is toward the South at 55º

Point the steel rod toward North, but again the angle is toward the South. So draw a line, with the post, going South to North.

Note the shadow. It will be increasing each day to get shorter, until on September 22nd, there will be no shadow, as the sun will be “pointing 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.

The previous marks (blue and yellow) on the scale indicate the positions of the suns shadow on different days, since August 24th.

The black mark shows the shadow on the first day of winter. The yellow mark was made on the longest day of the year….or the first day of summer.

Deep-sky observing can be enjoyed with a group or solitary, however for me, I much prefer the latter. I always have a planned agenda, with the object or objects that I’m interested in observing.

Deep-Sky observing (galaxies, nebula and star clusters) are very serious business for me, with no time for idle chatter or distractions! There are pencil sketches and notes to make! 🙂

However, I did have one observing partner that was with me on a regular basis for almost 17 years, but she passed away in February 2016. Its been ten years now as of 2026, and I still miss and think about her often.  

I can still see CJ, our Persian Cat, waiting anxiously at the back door, ready to go outside, while I’d be setting up my telescope on the deck or in the backyard. 

When the door was finally opened, she would run out, fast as she could and so excited. She would walk around, climb the deck, play like she was catching something….pouncing and clawing the ground. However, after a short while, she’d end up on my lap, either due to being cold or to just feel safe.  

CJ was going to stay with me for only a couple weeks and would then be moving to California, but that two weeks ended up being almost 17 years.  I’m really glad the move didn’t work out.   

Debbie and I held her in our arms from 11:30 AM till 8:15 PM.  I had my hand on her chest when her little heart beat the last time, after 19 years.  It was a very, very sad day.  

CJ had a wonderful life.  We treated her like a Princess.  

The following is a rough field sketch using chalk on “gray” cardstock, rather than “black” to better illustrate light pollution. Canopus is just visible in a distant tree line.

Canopus is located in the constellation Carina, and is the second brightest star in the sky. It has an absolute magnitude of -5.71 and with the following coordinates:

Right ascension: 06h 23min declination -52º 41

In the early 90’s, amateur astronomer Tom English, promoted an event called “The Great Canopus Chase” in our local astronomy club. It was unknown at that time if Canopus could be seen from the area, and amateurs went far and wide looking for the perfect southern view.

Many observers saw the star, but most from different locations, within the local area. It was a fun event. When I first saw it, I was surprised, but have seen it many times since. It has actually become an annual event, so it will be again this year. (2025) Roger Ivester

From my (+35º 18′ ) in North Carolina, my theoretical south latitude 90º (-) 35º = ~ -55º.

Of course the terrain and light pollution can most often be the limiting factor for many in their limiting theoretical southern latitude.

I can see the star Canopus at the south declination of (-52º 42′) but in a distant tree-line, however, it shines brightly!  It’s easy to see without optical aid, but I normally take my 7 x 21 mini-binoculars to assist, but once located, it’s very easy naked eye.

So, from my location, Canopus @ -52º 42′ is only ~ 2.5º above the horizon.

The following is my rough chalk sketch, on charcoal “colored” card stock. I made this “rough sketch” as viewed from the north end of Stadium Drive, at the stop sign (junction to the Boiling Springs/Cliffside highway)

Notes and image as following by Mario Motta:

Canopus near its peak which is 11º, here at about 10º above the horizon in Naples, Florida. The neighbor had all their lights on for some reason.

I received this note from Richard Shuford, this morning: March 2nd 2023

“Back in 1976, when I was an undergraduate physics major at Lenoir-Rhyne College in Hickory, NC, catching a glimpse of Canopus was celebrated by some of my friends who observed it from a high hilltop in Burke County.” Richard Shuford

(Note: Hickory is about one hour north from my location of seeing Canopus. I was very surprised when reading the above notes from Richard Shuford. I thought our group in Boiling Springs, in the early 90’s was the first time anyone in this area (+ 35º) NC was able to see Canopus.

Chuck Vaughn: Observer from California

Now what is the likelihood of me finding and seeing this in a 30 year old magazine? Especially since I just completed a Canopus post on my site?

I was casually thumbing through a December 1992 Sky & Telescope, and the word “Canopus” seemingly jumped out of page-712 and hit me, right in the eye! His (Chuck Vaughn’s) latitude is +37º 49′ which puts Canopus on the ~horizon, and being able to see it without optical aid!

The following is a brief of that article:

“Canopus, too! Chuck Vaughn of Fremont, California…..claims to have caught sight of the star without optical in November 1991, and three years earlier in December. Has anyone else seen it from such a northerly location?” CV

Note for reference: Richmond, Virginia has a latitude of +37º 53′ just about the same as Fremont, California.

I’m hoping someone reading, with a clear southern horizon, with a latitude of ~40º’s will attempt to see Canopus. This would put the star below the horizon! Is this even possible?

When I purchased my first f/4.5 Newtonian in February 1992, I learned about the need or reason for offsetting the diagonal. This was something totally new to me, as all my previous reflectors had focal ratios of f/8 or slower.

From my instruction book for the 10-inch Meade f/4.5 Newtonian which was beneficial for me at that time. I’m including a couple pages as following:

Meade Instruments Corp.

Newtonian Notes: Possibly or “arguably” one of the best books covering everything and anything someone would want to know about how to collimate a Newtonian reflector.

A page from “Newtonian Notes” as following, concerning the purpose and need for offsetting a diagonal.”

Orion Telescope and Binoculars has an incredible amount of solar equipment and everything you need to know, concerning solar observing.

The following image by Barre Spencer and Patrick White, using a Canon Rebel with a 200 mm zoom lens from the 2017 total eclipse, presents the Diamond Ring and Bailey’s beads very nicely. The image was made from Columbia, South Carolina.

Unfortunately my friend of many years, Barre Spencer, passed away on June 1st 2022.

Our story of witnessing the August 2017 total solar eclipse from Laurens, South Carolina:

A group of folks from various places met outside of an Italian restaurant to enjoy the solar eclipse together. We were all surprised how few came to this quaint little town to observe this historic event. The totality duration was ~ 2 mins  34 seconds, and with perfect weather!    

During totality the sky darkened to a surprising level, but not as dark as a clear full moon night. Venus appeared very bright in the western sky and Jupiter in the southeast. I could not see any stars naked eye.  

We were amazed at the sudden flash of the diamond ring!  

The temperature drop was very significant. A weather bureau report from Newberry, SC, only 30 miles away, and also in the line of totality, recorded a temperature drop of 11º Fahrenheit. So, we can assume that this temperature drop would have been similar in Laurens.

When the sun began to re-emerge, we noticed a shimmering of light waves on the pavement in front of us, known as shadow bands.  A very interesting phenomenon, which I was hoping we’d see…and we did!  

 

John Goss, who at that time was the President of the Astronomical League, sent both us two very nice and high-quality pins. I wear mine often to this day, with many questioning and asking what the pin is all about.

I’m really glad we have our 2017 pins, to remind us of that special day in Laurens, South Carolina. For many reasons, we’d never “witnessed” a total solar eclipse, and I’m glad I took notes, and made this post, shortly afterwards.

There is nothing like the written word, as there are always plenty of images of the event online, but there will be no duplication of your thoughts, your feelings and what you saw.

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.

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