M20
. .
Index
. .
M22
Messier 21
M 21 (NGC 6531). Open Cluster in Sagittarius.
RA=18 04.6, Dec=-22 30. 6.5 mag, dist=4.25 kly.
M21 page
;
DSSM page
Hartmut Frommert
Christine Kronberg
[contact]
Last Modification: December 23, 1999