M101, ngc5457 in Ursa Major ( Big Dipper)
Discovered by Pierre Mechain on March 27, 1781

Right Ascension = 14:03.2 (h:m:s), Declination = +54:21:00 (deg:m:s)
Magnitude = 7.9, Size = 22 arc minutes Distance: 27 million light years

M101, ngc5457 in Ursa Major ( Big Dipper), a huge face on spiral galaxy.

Optics: C8    adapter: Fastar (f2)
Date: 04/26/2004    Time: 04:03:38 UTC
Exposure: Luminance (20 x 60 sec exp each or 20 minutes total, -20 degrees camera cooling.
Resolution: Full (640x480)
Guiding: st4 and C102 @ f10
Acquisition: SBIG ST-237 camera, individual images 1 min each
Software: SBIG CCDOPS ver 5.25B19
notes: Autodark added to each image. Individual images Added in CCDOPS

Older version can be found here.

Return to CCD images.