Messier 22

M22, or NGC6656, a globular cluster in the constellation Sagittarius. A conspicuous naked eye object, M22 is the brightest globular cluster visible from the northern hemisphere. About 10,000 light-years from us, M22 is about 65 light-years across.

In 7x50 binoculars, it's very easy to find M22. It is bright and easy to find off the north-eastern tea pot (lid) asterism of Sagitarrius. It looks like a fuzzy disk with no hint of resolution. Very bright. A telecscope would definately resolve this globular.
This is a large globular, easily rivaling the size of M13. An 8-inch scope at 49X, many stars are visible. For a globular cluster, it is fairly loose. 122X provides a fantastic view. Stars are visible all the way into the center, with a diffuse glow as a backdrop. The cluster will appear to be slightly elliptical in shape. This one is definitely a crowd-pleaser.


    M22
    NGC 6656
    Other description: Globular cluster highly resolved.
    Constellation: Sagittarius
    Dreyer description: Very remarkable!, globular cluster, very bright, very large, round, very rich in stars, very much compressed, stars of magnitude 11 to 15;.
    Magnitude: 5.1
    RA: 18h 36m 40.2s Dec: -23°53'53"
    RA: 18h 36m 24.0s Dec: -23°54'00" (Epoch 2000)
    Azm: 167°08'22" Alt: +18°47'16"
    Rise: 21:11 Transit: 01:28 Set: 05:40
    Size:24.0'

RASC Charlottetown Centre