0bject |
M101 Spiral Galaxy in Ursa Major |
Date | May12-17, 2012 |
Exposure | LHαRGB 505:120:120:120:120 (16.4 hours, unbinned) |
Camera | STL11000M with Astrodon Gen II filters (water assisted cooling) |
Telescope | ASA 10N f/3.6 on AP 900GTO CPO3 |
Guiding | External guide head with MiniBorg 50 mm |
Processing | MaximDL, PhotoshopCS5, GradientXterminator, AstroActions |
Comments | Mild temps with good seeing X 3 nights; acquire with CCD Commander |
0bject |
M101 Spiral Galaxy in Ursa Major |
Date | 3/29 and 4/1/2006 |
Exposure | HaLRGB 90:165:25:25:25 (RGB binned 2x2) |
Camera | ST2000XM w/SBIG filters (Custom Scientific Hα) |
Telescope | Celestron C8 @ f/6.7 on Losmandy G11 w/Gemini |
Guiding | Self-guided ST237 |
Processing | MaximDL, FITS Liberator, PhotoshopCS |
Comments | Moderate seeing both nights |