0bject | NGC 457 & 436 Open clusters in Cassipeia |
Date | September 27, 2013 |
Exposure | LRGB 30:30:30:30 (Lum synthesized from RGB, cropped) |
Camera | STL11000M with AstroDon Gen II filters (water-assisted cooling) |
Telescope | ASA 10N f/3.7 on AP900GTO CP3 |
Guiding | Remote guide head with MiniBorg 50 mm |
Processing | MaximDL, Photoshop CS5, GradientXterminator, AstroActions |
Comments | Very good seeing; FWHM ~ 2 arcsec |
0bject |
NGC 457 Open Cluster in Cassiopeia |
Date | December 3, 2009 |
Exposure | LRGB 8:20:20:20 (unbinned, cropped) |
Camera | STL11000M with Astronomik filters |
Telescope | ASA 10N f/3.7 on AP900 GTO CP3 |
Guiding | Remote guide head with mini Borg 50mm |
Processing | MaximDL, Photoshop CS3, GradientXterminator, AstroActions |
Comments | Clear and quite cold; polar alignment checkout |