This is my first attempt to photograph
the planet Uranus, a very distant outer planet with a mere 3.6"
disk size. The top image here does reveal its greenish color,
and is at a size that the full moon would fill the entire frame.
Visually the disk was obvious and yellow green in color.
The lower image
was with a 3x barlow, and the seeing was not sharp enough to
show a clean disk, but the green color once again is pretty obvious.
So much for my first attempt. 500 to 1000 frames were registered
and stacked in Registax to make these.
Instrument: 12.5" f/5 Home made Newtonian
Platform: Astrophysics 1200 QMD
CCD Camera: Phillips Vestacam
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing FMHW = 6 arcsec, Transparency 8/10
Outside Temperature: 45F
Processing: Registax, Photoshop