SaratogaSkies Jim Solomon's Astropics

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December: Test shots with new scopes/mounts

Dec 21: TMB 80/480 Arrives!

Dec 3: AP1200 Arrives!

Nov 30: TMB 152/1200 Arrives!

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IC 1318 (γ Cygni Widefield)

Mouse-over to see annotations. (Requires Javascript) Click to see high-res version.

Image Details:

Camera: Mofidied Canon Rebel XT (350D): Hutech Type I Filter Replacement
Mount: Celestron AS-GT
Scope: Canon EF 200mm f/2.8L II USM lens
Configuration: Prime Focus
Additional Optics: n/a (Prime)
Filter: None
Effective Focal Length: 200mm
Effective Focal Ratio: f/2.8
Exposure: 30 x 4min @ ISO 200
Total Exposure: 2hrs, 0min
Date: 9/4/2005 10:34:49 PM PDT (start)
Location: Saratoga, CA, USA
Acquisition: DSLRfocus
Focus: DSLRFocus
Dithering: Manual
Guiding: GuideDog via Philips ToUcam Pro II (840k) through Orion ST80 w/ Celestron 2x "Kit" Barlow

Processing:

  • IRIS: Dark subtraction, registration, gradient removal
  • JimP: Flat field, Kappa-Sigma Stacking, White balance, ASINH stretching
  • Photoshop: Levels, cropping, JPG conversion

Image Description:

This is a widefield shot of the γ Cygni (aka, Sadr) region in the constellation of Cygnus. I blew the focus on this, but the shot isn't too bad nonetheless. Of course, it's hard to tell that the focus is blown at the image scale displayed herein. <grin> A higher resolution image of this widefield shot is also available, as is a closeup of the immediate Sadr Region from last year. North is right.

 
NGC 7000 & IC 5070 (North American & Pelican Nebulae Widefield)
SaratogaSkies Jim Solomon's Astropics

Search

Latest news

December: Test shots with new scopes/mounts

Dec 21: TMB 80/480 Arrives!

Dec 3: AP1200 Arrives!

Nov 30: TMB 152/1200 Arrives!

Links:

NGC 7000 & IC 5070 (North American & Pelican Nebulae Widefield)

Mouse-over to see annotations. (Requires Javascript) Click to see high-res version.

Image Details:

Camera: Mofidied Canon Rebel XT (350D): Hutech Type I Filter Replacement
Mount: Celestron AS-GT
Scope: Canon EF 200mm f/2.8L II USM lens
Configuration: Prime Focus
Additional Optics: n/a (Prime)
Filter: None
Effective Focal Length: 200mm
Effective Focal Ratio: f/2.8
Exposure: 46 x 4min @ ISO 800
Total Exposure: 3hrs, 4min
Date: 9/29/2005 PM 9:01:03 PDT (start)
Location: Saratoga, CA, USA
Acquisition: DSLRfocus
Focus: DSLRFocus
Dithering: Manual
Guiding: GuideDog via Philips ToUcam Pro II (840k) through Orion ST80 w/ Celestron 2x "Kit" Barlow

Processing:

  • IRIS: Dark subtraction, registration, gradient removal
  • JimP: Flat field, Kappa-Sigma Stacking, White balance, ASINH stretching
  • Photoshop: Levels, cropping, JPG conversion

Image Description:

This is a widefield shot of the North American Nebula (NGC 7000, left) and the Pelican Nebula (IC 5070, right), two emission nebulae in the constellation of Cygnus. This is one of my best widefield images to date. Lots of exposure time and really nailing the focus (always a challange at f/2.8) certainly helped. Mouse over the image to see the annotations. A higher resolution image is also available. North is up.

 
NGC 7293 (Helix Nebula [test shot])
SaratogaSkies Jim Solomon's Astropics

Search

Latest news

December: Test shots with new scopes/mounts

Dec 21: TMB 80/480 Arrives!

Dec 3: AP1200 Arrives!

Nov 30: TMB 152/1200 Arrives!

Links:

NGC 7293 (Helix Nebula [test shot])

Mouse-over to see annotations. (Requires Javascript) Click to see high-res version.

Image Details:

Camera: SBIG ST-2000XM
Mount: Astro-Physics 1200GTO
Scope: TMB 152/1200 APO Refractor
Configuration: Prime Focus
Additional Optics: n/a (Prime)
Filter: Astrodon Hα OIII 6nm Filters
Effective Focal Length: 1200mm
Effective Focal Ratio: f/7.9
Exposure: {1 Hα, 1 OIII} × 16min @ -20°C
Total Exposure: 0hrs, 32min
Date: 12/5/2007 6:46 PM PST (Start)
Location: Saratoga, CA, USA
Acquisition: CCDSoft
Focus: Manual
Dithering: None
Guiding: Self Guided

Processing:

  • IRIS: Dark subtraction, registration, White balance, ASINH stretching
  • Photoshop: Dust and Scratches, JPG conversion

Image Description:

This is a test shot of NGC 7293, aka, the “Helix Nebula”, a planetary nebula in the constellation of Aquarius. This is First Light for my new TMB 152/1200 APO Refractor and my new Astro-Physics (AP) 1200GTO German Equatorial Mount. I snuck in these two exposures, one each of my Hα and OIII, before the clouds wiped me out. I didn't even bother to really nail the focus, which I think I missed slightly. Nonetheless, I found the shot interesting enough to post. This is a pseudo-“True Color” image, with R:G:B = Hα:OIII:OIII. A higher resolution image is also available. North is up.