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nytecam
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Reged: 08/20/05
Posts: 4524
Loc: London UK
M57+ NGC 7006 via Classic 12"
      #2491125 - 06/30/08 04:36 AM Attachment (21 downloads)

Tested some new Lodestar software last night on a couple of DSOs via my 12" LX200 - the new Starlight CCD is uncooled [hot-pixel prone] and primarily for guiding but it proves very sensitive for direct imaging too as this 2m shot of M57. Darks used to remove hot pixels but no flats

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Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+DS-2090+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9/Lodestar/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-spectro page




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nytecam
Post Laureate


Reged: 08/20/05
Posts: 4524
Loc: London UK
Re: M57+ NGC 7006 via Classic 12" new [Re: nytecam]
      #2491128 - 06/30/08 04:44 AM Attachment (14 downloads)

Here's remote globular NGC 7006 in Del in 3m exposure - at gross mag 10.6 - its brightest stars m[v]15.6 down to average m[v]18.8 so is a very difficult object to resolve visually even in much larger scope than my 12-inch

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Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+DS-2090+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9/Lodestar/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-spectro page




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Jason B
Carpal Tunnel
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Reged: 06/21/04
Posts: 1841
Loc: Mid-Michigan
Re: M57+ NGC 7006 via Classic 12" new [Re: nytecam]
      #2499103 - 07/04/08 11:14 AM

Nice shots. What reducer are you using? I use an older F6.3 Celestron reducer that is pretty darn good.

I was imaging last night for the first time in years (been using small Newts/refractors) with the 12" LX200 classic as well and had a hard time getting it focused. I think it is pretty obvious I need to ad a fine focuser like a GSO/WO etc.

Jason


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nytecam
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Reged: 08/20/05
Posts: 4524
Loc: London UK
Re: M57+ NGC 7006 via Classic 12" new [Re: Jason B]
      #2499619 - 07/04/08 04:10 PM

Jason - I've both Meade FRs eg f/6.3 and f/3.3 for my f/10 LX200 and currently using latter with short extension tube to CCD to push the f/ratio 'speed' to an even faster f/2.9 but then vignetting [shading to edge] can be a problem and needs near perfect 'flat' for imaging. Focus has never been an issue with FRs

--------------------
Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+DS-2090+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9/Lodestar/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-spectro page




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