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Celestron C8 Registry

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#701 CHASLX200

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Posted 15 March 2020 - 02:35 PM

I spotted this early 80's (1982?) Orange Tube S/N 813172 with Diecast Forks, Round Base/Drives, Wedge Tripod and Trunk for sale on Yahoo Japan.  Seems to be is fair shape but needs some TLC.

 

Easy to clean the corrector.
 



#702 mdbradshaw

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Posted 18 March 2020 - 10:55 PM

I have 4 scopes to add to the Registry.

 

First is one I don't own, but considered buying this week.  On the Facebook, https://www.facebook...270583513927531

Orange tube serial #256376  Labeled as "Celestron Pacific", the instructions show a sandcast fork, but the paperwork is "Celestron International".  From what I've read, that makes it a 1975-1976 transition scope, and a very early diecast fork.

 

Then 3 that I do currently own...

Super Polaris C8 serial number 835997  Your basic black tube SP-C8, no coatings mentioned, thinner focus knob with black crosshatch type knurling.

 

Powerstar C8  serial number 841736 . Serial number is on the bottom of the base, not on the OTA.  Black tube, ribbed cell, Starbright coatings, smooth/brushed aluminum round focus knob.

Despite the standard claims that the Powerstar started in 1988, I think this one is closer to 1986.  I have the bill of sale, it was sold as a Super C8+, the manual is for a Super C8+, but it is very clearly a Powerstar.  It came with a Powerstar dual axis controller, a small battery pack and a standard for the time steamer type case.

 

Ultima 2000, serial number 899006.  Serial number is hand written inside the fork base.  Early model U2K without the FASTAR secondary.  Silver tube, Starbright Coatings, thicker silver focus knob with cross-hatch type knurling, and V1505 hand controller.


Edited by mdbradshaw, 18 March 2020 - 10:58 PM.

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#703 nexplcbl

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Posted 22 March 2020 - 07:46 PM

I have a nice C8 OTA serial number 174377 (1st qtr, 1977), badge on the fork mount that I no longer use, as I have a Celestron AVX mount for it.  I bought it in 2011 for $400 with the funky tripod with clamps that eventually gave out.  The previous owner later said it had been recently serviced.  It has gone to many outreaches with the Santa Barbara Astronomical Unit https://www.sbau.org

The trunk for it is deteriorating out on the back patio.

 

Also, There is a Celestron C8 at Westmont Observatory serial number 803829 if I read it right https://www.flickr.c...03/15193684082/ .

 

The club (sbau.org) has a very clean Celestar C8, serial number 908064 under the orange cap  https://www.flickr.c...157713297890632

for sale soon.  Was not tracking as well as i would like, but probably my alignment with north was off.

 

Last seen photo 2016, a cracked corrector due to shipping to/from another member had s/n 812778. https://www.flickr.c...ts/26677935406/   So that was probably sold off just for other parts.

 

ChrisU has a C8 serial number 805683, https://flic.kr/p/z3MgeA .  photo October, 2015.

 

Other known SBAU club members with C8's:  EdgarO, MichelleP, WinslowB, BruceM (2), JimW.  Maybe I can get their serial numbers.

 

Recently sold a Bosch & Lomb Criterion 8; who wants to track that?  https://www.flickr.c...157711284531831  .


Edited by nexplcbl, 23 March 2020 - 05:23 PM.

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#704 nexplcbl

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Posted 23 March 2020 - 05:28 PM

Latest additions:

--C8 s/n 233715 (1975 Pacific orange tube, s/n on foil plate) now resides near Phoenix with senior club astrophotographer RobertR.

--C8 s/n 803318 (1978 orange tube w s/n on corrector plate secondary mirror holder) owned by BruceM.


Edited by nexplcbl, 23 March 2020 - 05:30 PM.

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#705 Kasmos

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Posted 24 March 2020 - 12:12 AM

Latest additions:

--C8 s/n 233715 (1975 Pacific orange tube, s/n on foil plate) now resides near Phoenix with senior club astrophotographer RobertR.

--C8 s/n 803318 (1978 orange tube w s/n on corrector plate secondary mirror holder) owned by BruceM.

Just for the record, from those s/ns I'd agree that the first one is from '75, but I highly doubt the second one is from '78. The last number of the s/n no longer indicated the year when Celestron completely changed the method of numbering them between those two exmples. My '79 (#800783), was purchased the day of production at Celestron in March of '79, so one with a higher number would have to be newer.


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#706 CCD-Freak

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Posted 24 March 2020 - 09:36 AM

Just for the record, from those s/ns I'd agree that the first one is from '75, but I highly doubt the second one is from '78. The last number of the s/n no longer indicated the year when Celestron completely changed the method of numbering them between those two exmples. My '79 (#800783), was purchased the day of production at Celestron in March of '79, so one with a higher number would have to be newer.

I agree...my C8 has motor dated 2/79 and has the SN 1 444 9 which may indicate #444 of 1st Qtr 1979.  This was right at the time they changed the SN format.

 

John

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#707 asjr

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Posted 25 March 2020 - 09:48 PM

I also just recently acquired an older C8 fork mounted orange tube, S/N 822732, without a tripod or wedge. I will have to say that this C8 is in absolutely "like new" condition...including the optics. It also has a black

8X50 achromatic finder made in Japan. I do not have any idea if this was original or not. The only signs of age are on the Finder and the original plastic corrector cover.

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#708 asjr

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Posted 27 March 2020 - 07:04 PM

I just found this orange tube for sale in Alpine, CA. It is in relatively good shape.

 

 

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#709 Masvingo

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Posted 28 March 2020 - 11:13 AM

Many thanks to Wurthman20, Lindhard (always nice to get another tri-color on the Registry), ScoobyNarita (x2), mdbradshaw (x4), nexplcbl (x7) (I would agree with Kasmos that # 803318 is post 1978 - probably late '79 or early 80 - at some time early in 1979 the serial numbers changed to the 8xxxxx sequence with 8 = C8 and xxxxx a sequential number with no indication of the year or quarter) and asjr (x2) (the finder on #822732 doesn't look original to me - it differs in appearance to the 8x50 that was used at that time - see, for example, the back page ad in S&T Dec 1983).
 
I've updated the C8 Registry to Edition 20 to include all of the above contributions.
 
Please keep them coming.
 
Many thanks again everyone!

 

Edit: corrected Dec 1984 to Dec 1983


Edited by Masvingo, 28 March 2020 - 11:15 AM.


#710 asjr

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Posted 28 March 2020 - 12:04 PM

Thank you for your dedication to updating & maintaining this very informative registry. It has helped answer a lot of questions and resolve misconceptions of the history and evolution of the "standard" of the SCT family. I think all of us have at one time or another dreamed about owning a C8. It's also amazing to me how well the optics of these 4 decade old scopes have held up. It speaks volumes about the quality of Celestron products of that era.

 

Thank you again & clear skies to all!

 

Anthony


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#711 Mertzy

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Posted 01 April 2020 - 08:51 AM

I have one to add

 

Serial # 856157 C8 Powerstar, but the manual says Super C8 or C8+, so I'm not actually sure which it is. I don't have the original paperwork with me but it was purchased in 1990 at American Science Center in Chicago. I noticed another C8 with very close serial purchased at the same place.

 

John

 

 

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#712 CHASLX200

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Posted 01 April 2020 - 06:39 PM

I have one to add

 

Serial # 856157 C8 Powerstar, but the manual says Super C8 or C8+, so I'm not actually sure which it is. I don't have the original paperwork with me but it was purchased in 1990 at American Science Center in Chicago. I noticed another C8 with very close serial purchased at the same place.

 

John

Has to be a Power star. Look at the base and see the socket.  Maybe it is a 2 or 3 version Powerstar? I think they made 4 versions from around 1988 till 92.


Edited by CHASLX200, 01 April 2020 - 06:40 PM.



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