NGC 4565 - Spiral Galaxy in Coma Berenices


Copyright 2010 Hap Griffin

NGC 4565 is a typical Spiral galaxy viewed almost exactly edge-on.  Used as an example in many astronomy textbooks, it is a favorite target by many amateurs.  It lies at a distance of approximately 35 million light-years.  The smudge perpendicular and to its lower right is the 14th magnitude spiral galaxy NGC 4562. 


Date/Location:    January 12, 2010     Griffin/Hunter Observatory    Bethune, SC
Camera: QSI 583wsg
Filters: Astrodon E Series Generation 2 LRGB
CCD Temperature: -20 C
Instrument:    Planewave CDK 12.5"  
Focal Ratio:   f/8
Mount: AP-1200
Guiding:    Auto via the QSI camera's built in Off-Axis Guider mirror and a Starlight Express Lodestar Guider
Conditions:    Clear and cold
Weather:    20 F, still
Exposure: 140 minutes total (5 x 10 minutes Luminance, 3 x 10 minutes each in RGB)
Capture: CCDAutopilot 4 w/ Maxim DL Camera Control, focused automatically w/ FocusMax   
Processing:    Frame calibrations, alignment and stacking with ImagesPlus v3.80.  Finishing in Photoshop CS4.