TECHNICAL DETAILS I

OBJECT DATA: M33, The Triangulum -or Pinwheel- Galaxy (Triangulum). Distance: 3 million light years. Angular size: 49'
CATEGORY: Spiral Scd galaxy
OPTICS: Takahashi FSQ f/5
MOUNT: Losmandy GM-8
CAMERA: Modified Canon 350D (with Baader IR filter) @ 800 ISO
FILTERS: none
DATE: August 29, 2008
LOCATION & CONDITIONS: Hontanar (Toledo) - Spain. 20º C
EXPOSURE: 12 X 300 sec (Total: 60 min.)
CALIBRATION FRAMES: 20 darks, 20 flats
AQUISITION & PROCESSING: MaxIm DL, Images Plus, Photoshop CS3
COMMENTS: It is the third largest galaxy in the Local Group. The name Pinwheel Galaxy is used by
professional astronomers to refer to Messier 101.

TECHNICAL DETAILS I

OBJECT DATA: M33, The Triangulum -or Pinwheel- Galaxy (Triangulum). Distance: 3 million light years. Angular size: 49'
CATEGORY: Spiral Scd galaxy
OPTICS: William Optics Megrez 90 APO f/6.2
MOUNT: Losmandy GM-8
CAMERA: Modified Canon 350D (with Baader IR filter) @ 400 ISO
FILTERS: None
DATE: December 31, 2007
LOCATION & CONDITIONS: Las Rozas (Madrid) - Spain. 1 ºC
EXPOSURE: 17 X 300 sec. (Total: 85 min.)
CALIBRATION FRAMES: 0 darks, 0 flats
AQUISITION & PROCESSING: MaxIm DL, Images Plus, Photoshop CS3
COMMENTS: It is the third largest galaxy in the Local Group. The name Pinwheel Galaxy is used by
professional astronomers to refer to Messier 101.