|
Messier 9 |
 | 
| |
 | M9, or NGC6333, is a globular cluster in the constellation Ophiuchus. This globular appears quite small on the sky, as it is one of the ones nearer to the galactic center, but it shows a strong central concentration. About 26,000 light-years from us, and about 70 light-years across, M9 looks quite oval due to strong absorption by dust in the north-west (upper right). Only a dozen or so variable stars are known in M9, relatively few for a cluster of its size. This is a bright globular cluster. In a 8-inch at 188X, the cluster starts to resolve around the edges, and a couple of pinpricks are visible across the middle. The stars are difficult to resolve with direct vision, but they really start to pop out with averted vision. |
|
| You can find more information about this Messier object by visiting: SEDS - The Messier Catalog. |
|
M9 NGC 6333 Other description: Globular cluster mottled. Constellation: Ophiuchus Dreyer description: Globular cluster, bright, large, round, extremely compressed middle, well resolved, stars of magnitude 14; = M9. Magnitude: 7.9 RA: 17h 19m 27.7s Dec: -18°31'23" RA: 17h 19m 12.0s Dec: -18°31'00" (Epoch 2000) Azm: 186°15'12" Alt: +24°58'13" Rise: 19:26 Transit: 00:07 Set: 04:51 Size: 9.3' |