British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

BAA Community Member Pages Paul Downing
Image search

Messier 22 in Sagittarius

Image

Expand image

About this observation
Observer
Paul Downing
Time of observation
19/06/2014 - 23:00
Object
M22
Observing location
Alpujarra, Spain
Equipment
12.5" Planewave scope
QSI 683 CCD camera
Like This Image
Share

Messier 22  in the constellation of Sagittarius was the first globular cluster to be seen as such - i.e. a ball of stars.  The famous "Omega Centauri" was catalogued in the 2nd century A.D., but only as a star.  At a distance of 10,000 light years, M22 is one of the nearest globulars, with an absolute magnitude of -8.5, a luminosity of 210,000 suns, and a diameter of 70 light years.

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.