SaratogaSkies Jim Solomon's Astropics

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Jupiter   [obsolete]

Image Details:

Camera: Canon Digital Rebel (300D)
Mount: Celestron AS-GT
Scope: Celestron C8-N (8" f/5 Newtonian)
Configuration: Eyepiece Projection
Additional Optics: Celestron "Kit" 9mm Plössl
Filter: None
Effective Focal Length: 6650mm
Effective Focal Ratio: f/33.2
Exposure: 20 x 0.3 second @ ISO 100
Date: 6/21/2004, 9:41pm PDT
Location: Saratoga, CA, USA
Acquisition: Manual
Focus: Manual
Dithering: None
Guiding: None

Processing:

  • IRIS: registration, stacking, wavelet processing, cropping
  • Photoshop: Saturation, levels, JPG conversion

Image Description:

A decent Jupiter picture, but DSLRs just can't compete with webcams for planetary imaging in my opinion. The dark spot in the center of the North Equatorial Band is Jupiter's moon Ganymede. The pale, reddish patch on the far right side of the South Equatorial Band is Jupiter's Great Red Spot, affectionately known these days as the Great Pale Spot, since it's color has faded over the years. This is a crop of the full-size image. Earth's North is up, so Jupiter appears tilted counter-clockwise by 23.5°.

 
Moon and Venus
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:

Moon and Venus

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: Orion ED80 (80mm f/7.5 APO Refractor)
Configuration: Negative Projection (Barlowed)
Additional Optics: William Optics 2" APO 0.8x Reducer/Field Flattener
Filter: None
Effective Focal Length: 480mm
Effective Focal Ratio: f/6
Exposure: 62 x 1/1000s @ ISO 100 (Still); 106 x [ibid.] (Animation)
Total Exposure: 0hrs, 0min
Date: 5/19/2007 8:11:11 PM PDT (Start)
Location: Saratoga, CA, USA
Acquisition: DSLRfocus
Focus: DSLRFocus
Dithering: None
Guiding: GuideDog via Philips ToUcam Pro II (840k) through Orion ST80 w/ Celestron 2x "Kit" Barlow

Processing:

  • IRIS: Dark subtraction, Registration, Stacking, White Balance, Gamma stretch
  • JimP: Flat field, Pattern-noise removal
  • Photoshop: Sharpening, levels, cropping, JPG conversion
  • Mencoder: AVI creation

Image Description:

This is a conjunction of the Moon and Venus, separated by a degree or so during twilight on the night of May 19, 2007. The above (still) image is a stack of 62 exposures.

Far more interesting are the following animations, each consisting of 106 exposures:

A higher resolution image is also available. Zenith is up (north can be seen by mousing-over the image).