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Equipment Discussions >> Refractors

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Rob55
member


Reged: 12/15/12

Loc: Fort Polk, LA USA
Re: Celestron OMNI XLT 102 First Light new [Re: Mike4242]
      #5619755 - 01/12/13 08:15 PM

Mike

What is your finder?


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Mike4242
Pooh-Bah


Reged: 11/02/11

Loc: Memphis, TN
Re: Celestron OMNI XLT 102 First Light new [Re: Rob55]
      #5620337 - 01/13/13 09:15 AM

Quote:

Mike

What is your finder?




It's an Orion 9x50 RACI finder. I also use a Rigel Quickfinder because sometimes it can be difficult to know exactly where you're pointed with a right angle finder. I use the Rigel to center on a bright star and then use the 9x50 and a chart to hop from that point.


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newtoskies
Pooh-Bah


Reged: 07/15/12

Loc: SE Ma.
Re: Celestron OMNI XLT 102 First Light new [Re: Mike4242]
      #5620674 - 01/13/13 12:22 PM

Great report. I got my 102 on Friday and now the new scope curse is in full effect...waiting to use the scope is killing me. I'll be ordering the RACI finder for sure now.
How do you mount a Telrad on the 102 ?


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beatlejuice
Pooh-Bah
*****

Reged: 04/05/11

Loc: Hamilton, ON,Canada
Re: Celestron OMNI XLT 102 First Light new [Re: newtoskies]
      #5621476 - 01/13/13 07:17 PM

Quote:

How do you mount a Telrad on the 102 ?




This is how I do it.

Eric


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soliari
journeyman


Reged: 11/12/12

Loc: New Mexico, USA
Re: Celestron OMNI XLT 102 First Light new [Re: beatlejuice]
      #5622335 - 01/14/13 09:40 AM

I also recently purchased a OMNI XLT 102 and as luck would have it first light was also Jupiter on a clear New Mexico night. Since then we've seen M42 and squeezed most of M45 into the FOV.

I opted for the celestron 8-24 wide field zoom EP, which works wonderfully. I too am deciding on new eyepieces and from what I can gather it seems like some people have experienced on being able to magnify to 160 or so ... which is about a 6mm EP. Has anyone else noticed this with the XLT102? Or has anyone used a 5mm EP with it? This matters to me because if 160x is the limit then I'll opt for a 6mm & 32mm Plossl. Otherwise I think I'll go for a quality barlow and a 32mm Plossl.

Thoughts? Ideas?

Edited by soliari (01/15/13 12:31 AM)


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newtoskies
Pooh-Bah


Reged: 07/15/12

Loc: SE Ma.
Re: Celestron OMNI XLT 102 First Light new [Re: beatlejuice]
      #5622343 - 01/14/13 09:44 AM

Sure does, thanks for the link.

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Gary Riley
sage


Reged: 12/01/11

Loc: White Bluff, TN
Re: Celestron OMNI XLT 102 First Light new [Re: newtoskies]
      #5623421 - 01/14/13 08:58 PM

Soliari,
I have the XLT 102 as well and I have used a Baader Hyperion 5mm with several times. I have noticed that the image of Jupiter appeared a little "soft" compared to lower magnifications. Could have been due to the "seeing" or transparency. But more likely that I was reaching the limit of it's capacity at around 200X.

Gary


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soliari
journeyman


Reged: 11/12/12

Loc: New Mexico, USA
Re: Celestron OMNI XLT 102 First Light new [Re: Gary Riley]
      #5623697 - 01/15/13 12:29 AM

Thank you Gary. It's nice to know someone is out there pushing the optics of this scope. From all the searching I thought I was going to have to settle for 160x. I think I'll try to push mine.

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BoriSpider
Carpal Tunnel


Reged: 08/10/04

Loc: S.W.FLA
Re: Celestron OMNI XLT 102 First Light new [Re: soliari]
      #5624030 - 01/15/13 09:09 AM

I, too, use a 5mm UO HD ep every-so-often. Not much though.
And if I lucky I can barlow my 8mm radian for 250x.


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soliari
journeyman


Reged: 11/12/12

Loc: New Mexico, USA
Re: Celestron OMNI XLT 102 First Light new [Re: BoriSpider]
      #5624228 - 01/15/13 11:32 AM

250x out of this OTA? That's impressive. I keep hearing how the 102mm diameter just does not gather enough light for magnifications beyond 160 ... so happy to hear it's possible even if not very often probable.

Thank you gents.


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Mike4242
Pooh-Bah


Reged: 11/02/11

Loc: Memphis, TN
Re: Celestron OMNI XLT 102 First Light new [Re: soliari]
      #5624803 - 01/15/13 05:00 PM

On nights of good seeing I get very good views with the Omni 102 at 222x using a 4.5mm Meade HD-60. On nights of average seeing 150x-180x is about the max I go.

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greyfox
member


Reged: 08/29/10

Loc: Jacksonville, Florida
Re: Celestron OMNI XLT 102 First Light new [Re: Rob55]
      #5625136 - 01/15/13 08:30 PM

Hey everyone:

As an OXLT 102ED owner, I read this thread with great interest. I'm curious - the OP says three meteors crossed the field of Capella in formation....is it possible he viewed those spy satellites (forget the names) that cruise around in formation? I would look myself but I forget what those things are called....but I'm wondering if they crossed the field at his exact moment of first-lighting.

Otherwise, great report. I enjoyed reading it.

Brad


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csrlice12
Postmaster
*****

Reged: 05/22/12

Loc: Denver, CO
Re: Celestron OMNI XLT 102 First Light new [Re: Mike4242]
      #5625141 - 01/15/13 08:33 PM

Haven't really taken mine below the 6.7mm yet (nice views with it though). I believe the scope is more than capable of higher mag, it's the weather that's been the problem.

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Zamboni
scholastic sledgehammer
*****

Reged: 01/03/05

Loc: Colorado Springs
Re: Celestron OMNI XLT 102 First Light new [Re: greyfox]
      #5625228 - 01/15/13 09:28 PM

Quote:

Hey everyone:

As an OXLT 102ED owner, I read this thread with great interest. I'm curious - the OP says three meteors crossed the field of Capella in formation....is it possible he viewed those spy satellites (forget the names) that cruise around in formation? I would look myself but I forget what those things are called....but I'm wondering if they crossed the field at his exact moment of first-lighting.

Otherwise, great report. I enjoyed reading it.

Brad




I think the name of those is "Whitecloud" satellites.


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greyfox
member


Reged: 08/29/10

Loc: Jacksonville, Florida
Re: Celestron OMNI XLT 102 First Light new [Re: Zamboni]
      #5625339 - 01/15/13 10:26 PM

Yeah...not spy sats (per se) but NOSS ELINT "triplets"....

If I had to venture a guess, thats what he saw. Talk about luck!


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Zamboni
scholastic sledgehammer
*****

Reged: 01/03/05

Loc: Colorado Springs
Re: Celestron OMNI XLT 102 First Light new [Re: greyfox]
      #5625403 - 01/15/13 11:00 PM

No kidding! I've seen these before, but not crossing the FOV. Must be a heckuva sight!

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newtoskies
Pooh-Bah


Reged: 07/15/12

Loc: SE Ma.
Re: Celestron OMNI XLT 102 First Light new [Re: Zamboni]
      #5627181 - 01/16/13 10:42 PM

Great to hear the question and comments about pushing mag with this scope. I got mine on Friday and it's been cloudy since. I was thinking today of what would be the highest mag with this OTA. I'll be ordering the Paradigim ED 12 and 18mm and will be getting the TMB 9mm. I can 2x Barlow the ED EP's but wasn't sure if it would be worth trying the 9mm and Barlow.

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GOLGO13
Carpal Tunnel


Reged: 11/05/05

Loc: St. Louis area
Re: Celestron OMNI XLT 102 First Light new [Re: newtoskies]
      #5628322 - 01/17/13 03:34 PM

The general rule of thumb is 60x per inch of aperture as a max. That would require perfect conditions (seeing, cooldown, etc.). Your 1000 focal length scope with the 9mm would be 111x (nice medium mag). With a 2x barlow you are looking at 222x. Pretty much maxes out your scope. But it's within the 60x per inch range. I'd say it should work in perfect conditions. In general with that scope you'd probably want to stay around 180x for high magnification.

I think the moon handles magnification well...so certainly try 222x on the moon...and planets on a good day of seeing (not much twinkling in the stars).


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newtoskies
Pooh-Bah


Reged: 07/15/12

Loc: SE Ma.
Re: Celestron OMNI XLT 102 First Light new [Re: GOLGO13]
      #5628771 - 01/17/13 07:57 PM

ah thanks for the great info. I'll be seeing my friend this weekend who lives at a dark zone and will take the scope with me just in case.
With the 12 and 18mm and barlow I'll be at 166 and 110, still below the 200+ mag. These and the 9mm barlowed on my Dob will be way too much.


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GOLGO13
Carpal Tunnel


Reged: 11/05/05

Loc: St. Louis area
Re: Celestron OMNI XLT 102 First Light new [Re: newtoskies]
      #5628966 - 01/17/13 09:59 PM

Think it's about the same for your dob. 133x and 266x. Your dob's theoretical is 300x, but again I would stay closer to 200-240x most of the time.

Always worth a try to go high power, but in general low to medium power is best. A larger scope can handle more mag...but unless it's got tracking, it can be a pain to manually track (such as a non-motorized dob).


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