Thank you for your patience while we retrieve your images.
Uploaded 27-Feb-11
Taken 12-Feb-10
Visitors 86

14 of 29 photos
Categories & Keywords

Subcategory:Night Sky
Subcategory Detail:
Keywords:Bodes, Galaxy
Photo Info

Dimensions3600 x 2400
Original file size3.13 MB
Image typeJPEG
Color spaceUncalibrated
Date taken12-Feb-10 14:47
Date modified27-Feb-11 14:48
Shooting Conditions

Camera makeCanon
Camera model40D
ISO speedISO 1600
M81 Grand Spiral Galaxy in Ursa Major

M81 Grand Spiral Galaxy in Ursa Major

About this Object:
Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a spiral galaxy about 12 million light-years away in the constellation Ursa Major. Because of its proximity to Earth, its large size, and its active galactic nucleus (which harbors a supermassive black hole), Messier 81 is a popular galaxy to study in professional astronomy research. The galaxy's large size and relatively low apparent magnitude (lower magnitude implies higher brightness) also make it a popular target for amateur astronomy observation.

About this Photo:
Date(s): February 12, 2010
Location: From my driveway in Georgetown, Texas
Telescope: Celestron C9.25 @ F10
Mount: HEQ-5
Guiding: Orion StarShoot AutoGuider / Taurus Tracker III
Camera: Canon 40D Modified
Filter: Astronomik CLS
Exposure: 12x600s + 12x300s @ ISO1600 (3 Hours total)
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;
Temperature(s): 32º F