Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000eaa..booke6022.&link_type=abstract
"Encyclopedia of Astronomy and Astrophysics, Edited by Paul Murdin, article 6022. Bristol: Institute of Physics Publishing, 2001
Astronomy and Astrophysics
Astrophysics
Stars, Stellar Populations And Star Clusters
Scientific paper
M22 is a rich, old globular cluster in Sagittarius, very bright (5.1 mag) and fairly close (about 10 000 light-years) but only 1 degree out of the ecliptic. Its vincinity to the ecliptic plane is both an advantage and a disadvantage: it often appears in conjunction with planets and was discovered in 1665 (the first globular cluster recorded) by the German astronomer Abraham Ihle while he was obse...
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