NGC 6553

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Globular cluster
NGC 6553
NGC 6553 Hubble WikiSky.jpg
Photo from the Hubble Space Telescope
AladinLite
Constellation Sagittarius
Position
equinoxJ2000.0 , epoch : J2000.0
Right ascension 18 h 09 m 17.5 s
declination -25 ° 54 ′ 28 ″
Appearance
Concentration class XI
Brightness  (visual) 8.3 mag
Angular expansion 9.2 '
Physical data
Affiliation Milky Way
Redshift (-82 ± 13)  ·  10 −6
Radial velocity (-24.5 ± 4) km / s
distance 19.6  kLj 
history
discovery William Herschel
Discovery date May 22, 1784
Catalog names
 NGC  6553 • C 1806-259 •  GCl  88 •  ESO  521-SC36 •  GC  4378 • H IV 12 • h 3730

NGC 6553 is the name of a globular cluster in the constellation Sagittarius . NGC 6553 has an apparent magnitude of 8.3 mag and an angular diameter of 9.2 '. The object was discovered by Wilhelm Herschel on May 22, 1784 .

Web links

Commons : NGC 6553  - collection of images, videos, and audio files

Individual evidence

  1. NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c d SEDS: NGC 6553
  3. SIMBAD database
  4. Seligman