November 14, 2007

Uploaded 11/15/07

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This gas giant presents a difficult photographic challenge: Very small angular size (3.8 arcsecnds), low brightness and subtle coloration. Our typically poor seeing also did not make an easy target either, Registax had some difficulty aligning the dim disk. This result, which is my best shot of of this seventh planet from the sun so far is shown here, taken with our new Image Source DMK camera. Six hundred frames of each of three colors was sorted for the best 200 in Registax, then combined. Wavelets in Pix insight removed much of the seeing blur, and the RGB frames were combined in Photoshop.

Instrument: 12.5" f/5 with Televue 5x Powermate Barlow Platform: Astrophysics AP1200 CCD Camera: Image Source DMK 31AU03.AS Exposure: .26 sec 3.75fps Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing 6" approx., Transparency 8/10 Outside Temperature: 45F Processing: Registax, PixInsight Pro, Photoshop CS3