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NGC 2403

NGC 2403

March 27th, 2018

NGC 2403 is a decent sized spiral galaxy in the constellation Camelopardalis. On an interesting side note, Camelopardalis is the Latin name for giraffe. I guess when the Romans saw the animal for the first time, it looked like a camel with leopard spots.  The color data on this image turned out much better than in the M 109 image, but the entire frame of my luminance was covered with dust spots. I took and retook flats to no avail. Eventually, I woke up one weekend, got a cup of coffee, and cussed at the computer screen for three or four hours, and this is the result. I didn’t clean anything, and all of my images since have been fine with the same flats. ¯\_(ツ)_/¯

Captured on: January 15th, March 12th, and March 13th

AT6RC, 1370mm @ F/9
ZWO ASI 1600mm-C
ZWO filters
Skywatcher NEQ6 Pro
Orion SSAG


Luminance: Astronomik CLS filter(1.25″), 30x240s, -15C, 1×1 bin, Unity Gain
Red: ZWO Red filter(1.25″), 15x120s, -15C, 1×1 bin, Unity Gain
Green: ZWO Green filter(1.25″), 15x120s, -15C, 1×1 bin, Unity Gain
Blue: ZWO Blue filter(1.25″), 15x120s, -15C, 1×1 bin, Unity Gain

Total Aquisition of 3hr 30min


Thanks for looking!