Last updated on 10/26/2014

NGC 457 & 436

 

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

Wide Field View

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