M 74

M 74

© Wade Van Arsdale * Instrument: Planewave Instruments CDK 12.5 with Astro-Physics AP27TVPH focal reducer @ f6.2 (1971mm)

* Mount: AP1200GTOCP3

* Image Scale: 1.2 arc-seconds per pixel after processing

Camera: SBIG ST-2000XM with AO8 Adaptive Optics and CFW10 Color Filter Wheel using Custom Scientific LRGB filters

Filters & Exposure Times: o L: 18 x 5 minutes binned 1 x 1
o R: 24 x 5 minutes binned 1 x 1
G: 12 x 5 minutes binned 1 x 1
B: 18 x 5 minutes binned 1 x 1

o Super-Luminance Layer used for L-[LRGB]-RGB Stacking

o Multiple Luminance Layering in Photoshop (technique as described by Rob Gendler)

o Total equivalent unbinned exposure time of 10.5 hours

Software: Maxim DLCCD, CCDStack, Adobe Photoshop CS2, RC Astro Gradient X-Terminator

Location: C.A.A.S. East Observatory, Little Rock, AR., El. 650ft

Date: January 29th, 2011

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