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M-4
is a very large and diffuse globular. It makes a striking contrast
to the very compact globular M-80, also nearby (about 4 degrees away) in
the constellation Scorpius. . M-4 is about three times the diameter
of M-80 and only about 1 degree from the red star Antares. Although
M-4 is bright, it is often difficult to see for northern observers.
It is a diffuse object, usually low in the south and often hidden by light
pollution.
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Size: 30 arcmin Magnitude: 5.4 Magnitude Tip: 10.8 RA: 16h 23m 32.6s Dec: -26 d 31m 30s |
