Wolfram|Alpha

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Input interpretation:

M2  (globular cluster)


Properties:

distance from Earth | 11.49 kpc\n37474 ly\naverage radius | 87 ly\napparent magnitude | +6.6  (visible to the naked eye in dark skies)\nShapley-Sawyer concentration class | 2  (high density)


Equatorial location:

right ascension | 21^h 33^m 27.2^s\ndeclination | -49\' 22"

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