[4]M101, NGC 5457 in Ursa Major
Photographer:
 
Al Brockman
Telescope:
 
Meade 10" SCT @ f/10 (2500 mm)
Location:
  Mae Pa, Mae Sot, Tak, Thailand on 2002, Jan 19
Camera:
  SBIG ST-8 CCD camera with AO7 guiding @ 1.8 Hz
Exmposure type:
  L 15 x 600", Binned 2x2
Mount:
  LX200 on field tripod with Milburn Wedge
M101

Additional Notes:

The largest and brightest member of a small galaxy cluster located about 25 million l.y.'s away. A mottled halo containing a fine spiral arm structure and several H-II regions can be seen.

 
 
 
 
Design and production 2009 by Al Brockman