AstroGallery

M109

M109

Click on photo for a larger image.

Object Notes:
  • Constellation: Ursa Major
  • Location: RA: 11h 57m 36.2s Dec: +53d 22' 31" Epoch 2000
  • Size: 7.5 x 4.4 arc-minutes
  • Magnitude: 9.8
  • Type: Spiral Galaxy
  • AKA: ngc3992
Instrument: Ritchey-Chretien 32" Telescope
Focal Ratio: f7.2 (prime focus)
Camera: SBIG STL-11000 CCD camera
(See product review in July, 2004 issue of Sky & Telescope magazine.)
Exposure: 17 x 5 minutes Luminance unbinned, 5 x 5 minutes each R/G/B unbinned
Guiding: Off-Axis with STV Autoguider (Santa Barbara Instrument Group)
(See product review in May, 2003 issue of Astronomy magazine.)
See Photo/Guiding Equipment.
Date: 2/04/05
Post Processing: CCDSoft, CCDSharp, MaxIM DL, Photoshop CS

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