nearly edge on
is a comparison of the Planet Saturn in both visible light and
ultra violet wavelengths. The upper image was a filtered tri
color RGB sequence, each color a stack of the best of 1000 frames.
Seeing was average, and varied from 5 to 10 arcseconds. The blues
in the polar regions was very interesting. The lower frame was
taken with the schuler UV filter, isolating the methane band.
Not much for belt detail. The UV filtered exposures were 100x
longer than the RGB images!|
Instrument: 12.5" f/5 with 2x Barlow
Platform: Astrophysics AP1200
CCD Camera: Image Source DMK 31AU03.AS
Filter: Meade RGB, Schuler UV
Exposure: 1/10 sec for RGB, 10 sec for UV
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing average, Transparency 8/10
Outside Temperature: 40F
Processing: Registax, Photoshop CS3, Focus Magic Plugin
alignment in Registax, Wavelets in Registax, Levels and Contrast
In Photoshop CS3, |