NGC 6528

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.[2] Dreyer described it as "pF, cS, R", meaning poor and faint, considerably small and round.

NGC 6528
The globular cluster NGC 6528
Credit: HST
Observation data (J2000 epoch)
ClassV
ConstellationSagittarius
Right ascension18h 04m 49.61s[1]
Declination−30° 03 20.8[1]
Distance25.8 kly
(7.9 kpc)[1]
Apparent magnitude (V)10.65[1]
Physical characteristics
Radius8.3' x 8.3'[2]
Metallicity = -0.11[3] dex
Other designationsGCl 84, ESO 456-48, VDBH 257[1]

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.

The globular cluster was discovered in 1784 by the astronomer William Herschel with his 18-inch telescopes.

References

  1. "NGC 6528". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 8 January 2017.
  2. "NGC 6528". Retrieved 8 January 2016.
  3. "A Galactic Globular Clusters Database: NGC 6528". Retrieved 8 January 2017.
  • Media related to NGC 6528 at Wikimedia Commons


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