About this Object:
Messier 103 (also known as M103, or NGC 581) is an open cluster in the constellation Cassiopeia. M103 is about 25 million years old and at a distance of about 10,000 light-years from Earth. M103 is also the last Messier object to be cataloged by Charles Messier himself.
About this Photo:
Date(s):January 10, 2010
Location: From my driveway in Georgetown, Texas
Telescope: Celestron C9.25 @ F10
Mount: HEQ-5
Guiding: Orion StarShoot AutoGuider / Orion ST80
Camera: Canon 40D Modified
Exposure: 1 x 180sec
Acquisition: ImagesPlus 3.75 Camera Control
Processing: ImagesPlus 3.75 – Darks,Flats,Bias
Post-processing: Adobe Photoshop CS3; Gradient Exterminator; Noise Ninja; Noel Carboni's Tools; Star Spikes Pro
Temperature(s): 22º F