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Just acquired a Celestron 8

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28 replies to this topic

#1 Garyth64

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Posted 03 June 2020 - 01:44 PM

I picked up the C8 that was listed here on CN.  I do not know its age, so maybe it is not a classic. (sorry)

I have looked around here on CN, and I can't find any exact date of manufacture.  I don't see a SN anywhere.

 

This is my first SCT.  I got it to play around with.

 

After meeting the seller to pick the scope up, I learned that we sorta knew each other.  We had met at a outreach event at Island Lake, last year.  Small world.

 

It has some scuffs here and there, but the optics look great.

 

Celestron 8 c.jpg

 

After I got it home, I just had to set it up:

 

Celestron 8 a.jpg

 

Next clear night, I'll put it thru it paces.


Edited by Garyth64, 03 June 2020 - 01:45 PM.

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#2 petert913

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Posted 03 June 2020 - 02:11 PM

Well, the optics look clear as a bell !!  That's good news.


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#3 starman876

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Posted 03 June 2020 - 03:11 PM

Looks great.  Hard to go wrong with a c8.  Make sure it is carefully collimated.  Do it on a star at high power. Many SCT's bit the dust because the owner did not do a good collimation.  A hair off and you go from 1/4 wave or better to 1/2 wave or worse.   


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#4 Defenderslideguitar

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Posted 03 June 2020 - 04:43 PM

Looks very nice

 That is a solid mount I think

    All good


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#5 rcwolpert

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Posted 03 June 2020 - 05:54 PM

Very nice C8 and mount! 


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#6 Garyth64

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Posted 03 June 2020 - 06:09 PM

Looks very nice

 That is a solid mount I think

    All good

Yes, it is a solid mount.

 

It carries my 5" APO without breaking a sweat, and the C8 is much lighter.



#7 CHASLX200

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Posted 03 June 2020 - 06:16 PM

Looks like a later 80's or early 90's OTA...



#8 Garyth64

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Posted 03 June 2020 - 08:27 PM

Here's a shot from the back.  It has Starbright coatings.

 

Celestron 8 b.jpg


Edited by Garyth64, 04 June 2020 - 07:10 AM.

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#9 telesonic

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Posted 03 June 2020 - 09:05 PM

Nice!

Since the OTA has the rear grab-handle, I'd guess it is a deforked Ultima C8 - which were C's top of the line at the time. (mid-late 90's? so probably kinda Classic too wink.gif ) 

 

Looks pretty clean.... you should get some very nice views with it, I think. Good score!

 

Cheers,

T


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#10 starman876

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Posted 03 June 2020 - 09:18 PM

Here's a shot from the back.  I has Starbright coatings.

 

attachicon.gifCelestron 8 b.jpg

no ribbing on the back plate should be an indicator of when made. plus the handle mentioned in the above post points toward the Ultima.  They claimed these had a crown glass corrector.   Also claimed the optics were selected at the factory to provide the best.   Nice find.   90's is a good time frame.


Edited by starman876, 03 June 2020 - 09:30 PM.

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#11 Moonbiter

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Posted 03 June 2020 - 10:11 PM

Island lake in Brighton MI? Nice scope btw.
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#12 mdbradshaw

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Posted 03 June 2020 - 10:29 PM

no ribbing on the back plate should be an indicator of when made. plus the handle mentioned in the above post points toward the Ultima.  They claimed these had a crown glass corrector.   Also claimed the optics were selected at the factory to provide the best.   Nice find.   90's is a good time frame.

Also has the silver, knurled focus knob which looks the same as my 1996 Ultima2000. 



#13 CHASLX200

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Posted 04 June 2020 - 05:25 AM

Could be very good once you test it out or could be a so so or a clunker. Every year would vary big time from scope to another.



#14 Garyth64

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Posted 04 June 2020 - 07:15 AM

Island lake in Brighton MI? Nice scope btw.

Island lake Rec Area  at the Mill Pond  (near Brighton).  Our club has their monthly public outreach events there. (but not at this time)



#15 Garyth64

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Posted 04 June 2020 - 07:29 AM

I had googled "Celestron C8" and didn't come up with anything specific.  But when I googled "Celestron Ultima 8", I came across lots of information.

 

So from what has been said here, and now what I have found, this scope is a Celestron Ultima 8. 


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#16 starman876

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Posted 04 June 2020 - 07:57 AM

I had googled "Celestron C8" and didn't come up with anything specific.  But when I googled "Celestron Ultima 8", I came across lots of information.

 

So from what has been said here, and now what I have found, this scope is a Celestron Ultima 8. 

there you go.  Great find and it should be a great scope.


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#17 jwheel

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Posted 04 June 2020 - 10:02 AM

Nice find!


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#18 Garyth64

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Posted 04 June 2020 - 11:16 AM

Nice find!

I think that maybe a scope finds you.



#19 starman876

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Posted 04 June 2020 - 12:24 PM

I think that maybe a scope finds you.

I must have a wanted poster out on melol.gif


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#20 Garyth64

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Posted 04 June 2020 - 02:13 PM

In flipping thru S & T 1991, I did see some ads for the Ultima.  There are some differences between the C8's.

 

I'll keep looking in the years before and after 1991, to see if I can get a better approximation.

 

EDIT:

 

the following should not be taken as an exact finding:

 

I first saw the Celestron Ultima 8 being introduced on the back page of S & T, Nov. 1988. (didn't find it in the Oct issue)

 

In April 1994, I still found ads, but by June, 1994, Celestron introduced a Ultima 2000.

 

So maybe that is the range, from about November, 1988 to about May, 1994.  Looks like is does qualify as a classic.

 

Also, in the December, 1989 and January 1990, there was a two part test of different Meade and Celestron 8" SCTs, by Dennis di Cicco.  It was a very good analysis of those scopes.  The Ultima 8" was one of the scopes, and it seemed to be favored by Dennis.


Edited by Garyth64, 04 June 2020 - 03:10 PM.


#21 billbillw

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Posted 04 June 2020 - 02:54 PM

In flipping thru S & T 1991, I did see some ads for the Ultima.  There are some differences between the C8's.

 

I'll keep looking in the years before and after 1991, to see if I can get a better approximation.

If you haven't already, check out Uncle Rods Guide...pretty comprehensive.

https://skywatch.bra.../used/index.htm


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#22 Garyth64

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Posted 07 June 2020 - 10:09 AM

I did get a chance to do some looking around with this scope last evening.  I was looking at some faint fuzzies, M81 & M82, and M57.  In M13, I could make out some individual stars across the cluster.

My light polluted skies are terrible.

I am looking forward to taking a look at the planets.



#23 CHASLX200

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Posted 07 June 2020 - 10:30 AM

Bright skies wash out globs. Even in my around mag 5 skies M13 is not much in a 18".



#24 starman876

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Posted 07 June 2020 - 10:43 AM

I did get a chance to do some looking around with this scope last evening.  I was looking at some faint fuzzies, M81 & M82, and M57.  In M13, I could make out some individual stars across the cluster.

My light polluted skies are terrible.

I am looking forward to taking a look at the planets.

Interesting,  in my light polluted skies M13 is visible and has been a beautiful sight.   Now, I have not looked at it in a while. 



#25 Wurthman20

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Posted 15 June 2020 - 10:02 AM

Beautiful scope
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