NGC 891

NGC 2903, in Andromeda, is an edge-on spiral galaxy.

Technical Data
Optics 20cm Meade Schmidt-Cassegrain Telescope
Focal Lenght 1300 mm with Meade 0.63x reducer
Focal Ratio f/6.6
Exposure Time and filters LRGB 60:20:20:20 (single exposures of 5 min)
Sensor Kaf-402me grade 2
Chip temperature -30°C
Location Tradate (VA, in Pianura Padana, Italy) at 300m
Date and time of exposure start 3 january 2005, 19.17 UT
Mount Gemini G41
Tracking ST4
Temperature and humidity T=+3°C, RH=44%
Notes -

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