Q1146322

globular cluster

Key facts

Class: V
Constellation: Sagittarius
Right ascension: 18 04 49.61
Declination: −30 ° 03 ′ 20.8 ″
Distance: 25.8 kly , (7.9 kpc )
Radius: 8.3' x 8.3'
Metallicity: [ Fe/H ] = −0.11 dex
Estimated age: 11 ± 0.5 Gyr
Other designations: GCl 84, ESO 456-48, VDBH 257

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Wikidata facts

Instance of: globular cluster
Constellation: Sagittarius
Parent body: Milky Way
Image: NGC 6528 hst 11664 51 R814G555B390 9453 62 R814G606B.png

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Commons category: NGC 6528
discoverer or inventor: William Herschel
time of discovery or invention: 1784-06-24
metallicity: -0.44
catalog code: [KPS2012] MWSC 2800
apparent magnitude: 12.12
right ascension: 271.206708
declination: -30.055778
epoch: J2000.0
radial velocity: 184.9
right ascension component of proper motion: -0.350
declination component of proper motion: 0.2700

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Encyclopedic overview

NGC 6528 is a globular cluster in the constellation Sagittarius, and is listed in the New General Catalogue. It has an apparent magnitude of about 11 and a diameter of about 16 arcminutes, and its Shapley–Sawyer Concentration Class is V, containing stars of 16th magnitude and dimmer. Dreyer described it as "pF, cS, R", meaning poor and faint, considerably small and round.

NGC 6528 is located southwest of NGC 6522, another globular cluster. Both are located in Baade's Window, a relatively clear area near the galactic equator.

Excerpted from Wikipedia’s “Q1146322” article, available under the CC BY-SA 4.0 licence.

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