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Celestron C8 Registry

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#626 toyhole

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Posted 31 October 2019 - 09:43 AM

Hello. I’m not an expert, but That looks to be number 1!  The first group of axial focus C8’s that were made stamped the serial on the focus collar next to the celestron 8 sticker-like yours! Congratulations! I don’t know how many they did like that but  I have seen a SN up to 14 done that way.  I have axial focus C8 number 69 and it’s stamped on the sticker itself. Check the motors in the base for a date. Mine were in this format: 9-70. So my drive motors were made in September of 1970. This date will be close to the manufacture date of the scope. The shaft keeps the mirror assembly from rotating while focusing.

thats a great find!


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#627 akvik

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Posted 04 November 2019 - 03:35 AM

Hi,

 

is there a particiular reason why the list is in a jpg format? Why not a google drive document, or at the very least a csv file? It's everybody's effort to add entries, and it would be real nice to be able to filter and format, IMHO.



#628 apfever

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Posted 04 November 2019 - 09:46 AM

Hello. I’m not an expert, but That looks to be number 1!  The first group of axial focus C8’s that were made stamped the serial on the focus collar next to the celestron 8 sticker-like yours! Congratulations! I don’t know how many they did like that but  I have seen a SN up to 14 done that way.  I have axial focus C8 number 69 and it’s stamped on the sticker itself. Check the motors in the base for a date. Mine were in this format: 9-70. So my drive motors were made in September of 1970. This date will be close to the manufacture date of the scope. The shaft keeps the mirror assembly from rotating while focusing.

thats a great find!

All things considered so far, from the family I received it from to location to history to etc., it sure seems to be number 1.  One motor is dated 6-70, which can be read installed. Both motors are temporarily stuck due to stripped screw heads. I've started a string on it here:

 

tri-color axial C8 with #1

 

Hi,

 

is there a particiular reason why the list is in a jpg format? Why not a google drive document, or at the very least a csv file? It's everybody's effort to add entries, and it would be real nice to be able to filter and format, IMHO.

Letting any of the registries (several in this forum) be available for public altercations would create a disastrous mess. I think most people would agree with this. A jpg is one of the most common and easiest to open formats across many systems. It is a reference to be controlled with scrutiny.  By the same token,  I'm offering up mine as #1, with cooperation to any inquiries or request by the registry keeper.  In this case I would expect extra scrutiny and input is welcome. 


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#629 akvik

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Posted 04 November 2019 - 02:15 PM

 

Letting any of the registries (several in this forum) be available for public altercations would create a disastrous mess. 

How would that be a mess? You could share the google sheets document and let people make a local copy to modify, filter, search and tweak to their own desires.



#630 Kasmos

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Posted 04 November 2019 - 02:26 PM

How would that be a mess? You could share the google sheets document and let people make a local copy to modify, filter, search and tweak to their own desires.

Many of the people who first contact the registry have incorrect info about their scopes, so it could end up being a source of tons of mis-information.


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#631 Defenderslideguitar

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Posted 04 November 2019 - 07:50 PM

Agree with the above post  ..... 

 

keep it as  clean as possible....


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#632 Wolfman1138

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Posted 15 November 2019 - 03:45 AM

I recently picked up what I believe is a Super C8 with the Star Bright coatings and the Beyer's Drive on an auction site.  It is a black tube that also came with the 8x50 spotting scope and a damaged Telrad Finder Sight.  It is mounted on a Meade tripod.

 

This scope seems to have had a hard life, so you'll find me asking some questions around this forum and the Cats & Casses group.  The primary mirror looks to be covered in junk and the whole scope is really dusty/dirty.   I think I am going to have a new hobby just cleaning the thing, but I am super excited.

 

Zx0FqG5.jpg

 

 

cTLaCAl.jpg

 

yPjUGfu.jpg


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#633 Masvingo

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Posted 23 November 2019 - 02:46 PM

I’ve updated the C8 Registry to Edition 18.  Apologies for the delay in getting this update out.
 
Many thanks to akvik, Tom Stock, Augustus, bob midiri, Jeffrauch, Travbond, jerrybHorseheads, HGSTAR, RyanSem, GalaxyPiper, scythe, Creedence, JoshKnight, thb, Defenderslideguitar, Wolfman1138 and apfever for their contributions. 

akvik – great that you got the MD-6 Quartz Driver and Advanced Astro Master with your scope, and in unused condition!

HGSTAR – well done with the renovation and good that the foil wasn’t too difficult to remove.

scythe – nice to hear you have your uncle’s C8, good luck with the renovation.  You are correct that  the serial number is from the 3rd quarter of 1975.

Creedence – interesting that your scope has 2 different serial numbers!  Some OTAs were sold separately, with the s/n plate being on the tube instead, and it may be that the seller’s uncle bought an OTA and at a later stage got a mount from a scope that was deforked.

thb – I’m not sure what to make of the serial on the scope you mention.  Based on what we have in the registry, Celestron started identifying the quarter of production in the 2nd quarter of 1972.  The last serial for 1972 we have is 4 936 2 (4th quarter 1972 - 936th scope made), the first 1973 serial we have is 1 1004 3 (1st quarter 1973 - 1004th scope made) and the last is 4 1493 3 (4th quarter 1973 - 1493rd scope made) so the Von Braun serial doesn’t fit the pattern.  The first serial we have for the 3rd quarter of 1973 is 3 1318 3 so the number can’t even be explained by Celestron accidentally missing out the second digit as 2 1356 3 would still be out of sequence.  There have been a couple of instances of C8s having out of sequence numbers, usually as a result of being specially built, but it is a bit of an enigma!

apfever –  there has to be a number 1 somewhere and the type style of your s/n number stamping looks the same as that on Ken Launie’s no. 22 and is in the same location and your scopes both have the same small ‘CELESTRON 8’ label. The type style on Bob Griffith’s no. 31 looks the same too, although it seems that with a change to a larger label the s/n was now stamped on the label.  It also seems reasonable, given the markings on the corrector plate, that your optics are numbered 1. In your thread on this scope, Robert Piekiel mentions another C8 that had optics number 2 on the back of the primary.  He also mentioned that the early C8s were produced in batches of 25 units and it seems that your scope of his scope are probably the first 2 out of the first batch of 25.  Assuming batches of 25, it looks like only 125 axial focuser models were produced as  the highest s/n reported so far for an axial focuser is crw's 117 (sadly no pictures) and Tim’s Tinky, which has the ‘normal’ focuser arrangement is s/n 135.  So the axial focusers must have stopped between 117 and 135.

As ever, all contributions, clarifications and corrections gratefully received and remember – plenty of pictures too as it's interesting to see the small detail differences over the years or the accessories fitted.


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#634 Flyboyron

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Posted 23 November 2019 - 04:25 PM

After a long time of searching, I FINALLY found the serial number of my C-8. It isn't ANYWHERE on the scope. The cap on the front has no evidence it ever had the sticker others show. I have never even removed the orange cover over the collimation screws until earlier this year when I added Bob's Knobs to the beast.

 

I even took off the corrector plate last year to lightly/carefully clean it, and didn't see a serial number anywhere, though I'd heard it might be on there.

 

But I just came across the original invoice from July, 1985, and attached to it was the Celestron Optical Certification which lists the S/N as #6356That number doesn't seem like ANY of the ones in the registry, near the date of mine, and I can't explain that. Maybe someone else can.

 

Bought it from "Ad-Libs Astronomics", now just known as "Astronomics".

 

It was purchased as a Super Polaris C-8 kit, with Starbright Coatings, and a single motor (RA). It actually did a fairly decent job of tracking until the stepper quit altogether. I hadn't used it in many years, but a friend led me back into the hobby, and I upgraded this one about 5 years ago to an AVX mount and sold the SP mount and hardware, and have added just a couple of additional options. <grin>

 

The OTA is from the "Pre-Halley" era where some people had reported quality issues, but my mentor/friend who's been in the field for about 50 years has commented that he's been very impressed with the image quality from my "little" scope. (He has a backyard observatory with a pier-mounted 10" Meade S-Cat, a 65mm AstroTech , and a WHOLE lot more experience in AP than I have.)

 

It's given me many hours of enjoyment, and I've tried to take good care of it. Looks like it did the day it first came out of that big trunk.

 

Ron

 

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Edited by Flyboyron, 23 November 2019 - 04:27 PM.

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#635 apfever

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Posted 23 November 2019 - 09:06 PM

#2960, Jan. 1975.   This is from a recent ad posted in the Classic Ads string. Sand cast.

 

Scope Ad

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Edited by apfever, 23 November 2019 - 09:08 PM.

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#636 Masvingo

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Posted 24 November 2019 - 04:24 PM

Thanks Flyboyron and apfever - I've bumped the C8 Registry up to Edition 18.1.

 

Flyboyron - the serial number you have found is, I think, the optics serial number and whilst the optics numbers for the very first C8s match the telescope serial number, the optics numbers generally do not follow the same sequence as the serial for the telescope.  The optics number is usually 4 digits whereas for the C8s made from 1979 onwards the telescope serial number is 6 digits starting with an 8.  The telescope serials go up sequentially but I don't know how the optics numbers work yet and, unfortunately, we don't have enough reports of optics numbers yet in the Registry to see if there is a pattern.  What is the date on your invoice?

 

Does anyone have any thoughts as to how the optics numbers for C8s work? 



#637 apfever

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Posted 01 December 2019 - 08:37 AM

OT C8 on EB. Here's the link and serial number. Has a bunch of pictures in the ad.

 

C8 link

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#638 Masvingo

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Posted 01 December 2019 - 02:27 PM

Thanks Neil, I've bumped the C8 Registry to edition 18.2.



#639 Augustus

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Posted 01 December 2019 - 03:34 PM

I currently have #151788, a '76 Sandcast with special coatings.

 

I have also had a few go through me that I forgot to report:

 

#816005, a diecast orange tube. Sold it a while ago

 

#853947, a Powerstar or early Ultima I believe. Just sold it to tanker86, haven't shipped yet

 

#815511 was deforked and sold to brisby2.

 

#824645, a 1984 Super C8. Sold it to someone locally

 

#919070, an Ultima 2000. Deforked now. Dunno where it is.


Edited by Augustus, 01 December 2019 - 03:52 PM.

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#640 Masvingo

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Posted 07 December 2019 - 11:22 AM

Many thanks for your list, Augustus.  I've updated the C8 Registry which is now at Edition 18.3.


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#641 Don-richardo

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Posted 08 December 2019 - 10:31 AM

hello folk's! just found this thread and was wondering if you guys could help nail down the year for me?

SN one the secondary cover is 803864. got it from a man in south haven just below Memphis TN. 2 years ago

for $250. orange tube duel clock drives. non cast forks. any other info you need I'll get. I kind of half way looked it up.

but it git's a little tangled in the latter years. I think it's around 1979 but it's hard for me to tell. anyway thanks if you can! 

 

up date

just looked on the clock drive it has 36432L-2WA-6-4 6-79 

 

Rick Olson

Tupelo MS. 


Edited by Don-richardo, 08 December 2019 - 10:52 AM.

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#642 Masvingo

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Posted 08 December 2019 - 01:36 PM

Thanks for the details, Rick, I've updated the C8 Registry and it's now at Edition 18.4. 

 

It's a bit hard to be definite but I would guess either late 1979 or early 1980.  Your motors have a June 1979 date so it can't be earlier than that but it could be later depending on how long they sat on either the supplier's or Celestron's shelf.  Serial # 802858 on the Registry has a reported sale date of Oct 1979 and a mirror QC date of 8 August 1979.  Whilst serial # 804372 has motors that are dated Dec 1979 and # 805093 has motors dated Nov 1979, both # 805686 and 805823 have June 1979 motors, with # 805686, a Tuthill Super C8 having a reported sale date of May 1980.  # 805904 has a reported sale date of April 1980.  The sale dates give the latest date of production but the actual date may be earlier depending on how long the scope sat with the dealer.  So it's difficult to be more precise tham late 1979 / early 1980.

 

 


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#643 Don-richardo

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Posted 08 December 2019 - 02:21 PM

thank you very much! it's in awesome shape for that age. i'm very happy with it. i'll upload some pix of it. 

great work and thanks for doing this list! we all drooled over the C8's in the back of sky and telescope back in the day. lol. 



#644 Masvingo

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Posted 08 December 2019 - 02:34 PM

Looking forward to seeing some pictures!  Yes, I was a teenage in the 1970s when I got hooked on astronomy and our school astronomy club had a S&T sub and I spent a lot of time drooling over Celestrons, Unitrons, Caves and Questars!


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#645 Don-richardo

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Posted 08 December 2019 - 05:41 PM

1.jpg 2.jpg 4.jpg 5.jpg 6.jpg

 


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#646 Masvingo

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Posted 09 December 2019 - 04:52 PM

Very nice! The orange C8s on a locked triangle tripod are my favourites, never had a chance to look through one until a few years ago but they were in my dreams as an astronomy mad teen.  Thanks for posting the pics. :waytogo:


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#647 Rocketboy25

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Posted 11 December 2019 - 10:09 AM

Hello from Germany,

 

this is my vintage <1989 C8 .....Mirror still in very good condition ! 

 

Regards and CS,

 

Jochen

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#648 Masvingo

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Posted 14 December 2019 - 09:22 AM

Thanks for the details of your C8, Jochen, it looks great.  I've added it to the C8 Registry which is now at Edition 18.5.


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#649 Brisby2

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Posted 14 December 2019 - 10:46 PM

This is my second 1980 Celestron C8 that I recently acquired. It's still on the forks and has the original wedge and tripod. Serial number is #806332.

 

IMG_8166.JPG

Edited by Brisby2, 14 December 2019 - 10:47 PM.

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#650 Masvingo

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Posted 15 December 2019 - 07:53 AM

Thanks for the details of your C8, Brisby, another great looking scope, orange and on a locked traingle tripod - nice!. 

 

I've added it to the C8 Registry which is now at Edition 18.6.


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