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Globular cluster in the constellation of Ophiuchus

NGC 6293

NGC 6293
All data from the card 9
Class
IV
Constellation
Ophiuchus
Right ascension
17h 10m 10.42s
Declination
−26° 34′ 54.2″
Distance
31000 ly (9500 pc)
Apparent magnitude (V)
9.02
Apparent dimensions (V)
7.9′ × 7.9′
Metallicity
[Fe/H] = −1.99 dex
Other designations
GCl 55, VDBH 215

NGC 6293 is a globular cluster located in the constellation Ophiuchus. Its Shapley–Sawyer Concentration Class is IV. William Herschel discovered NGC 6293 on May 24, 1784, cataloging it as Class VI, No. 12 (H VI-12). Early cataloging errors mistakenly credited Lewis Swift with the discovery in 1885, but primary historical records and modern databases officially attribute the find to Herschel. Like many other globular clusters, its distance is not well known; it may be anywhere from 31000 to 52000 light-years away from Earth.

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Text from Wikipedia, CC BY-SA 4.0 · Source article