M 93
SEDS · Download full size image
Open Cluster M93 (NGC 2447), type 'g', in Puppis
Right Ascension: 07 : 44.6 (h:m)
Declination: -23 : 52 (deg:m)
Distance: 3.6 (kly)
Visual Brightness: 6.0 (mag)
Apparent Dimension: 22.0 (arc min)
Discovered by Charles Messier in 1781.
As one of the last deepsky objects found by him personally, open cluster M93 was discovered by Charles Messier and cataloged by him on March 20, 1781.
M93 is one of the smaller but bright open clusters, the stars forming a triangular shape, while Kenneth Glyn Jones found it more like a butterfly, and Admiral Smyth was reminded to a star-fish. At least about 80 members appear scattered over its 22' apparent diameter, which is of the order of 20-25 light years linearly at its distance of about 3,600 light years.
The brightest stars of M93 are blue giants of type B9, its age has been estimated as roughly 100 million years. Its Trumpler classification is given as I,3,r.
To find M93, find Omicron1 and Omicron2 CMa about 8 deg SE of Sirius, and M93 on the same parallel (declination) as Omicron2 but 10deg E, near Xi Puppis. Posted on: 19 Feb, 2005
-
Nov 21, 2009, 10:11 am
Study: Music Can Repair the Brain
-
Nov 21, 2009, 10:03 am
Scientists Study 'Face Touchers'
-
Nov 21, 2009, 9:30 am
COBE: The Cosmic Background Explorer's 20th Anniversary
-
Nov 21, 2009, 9:23 am
Scientists: Bad Bugs and No Drugs
-
Nov 21, 2009, 8:01 am
H1N1 Virus: Concerns are Growing
-
Nov 21, 2009, 7:33 am
New Mammogram Guidelines Are Causing Anger and Confusion
- More Videos
RSS Feeds