NGC 6568

from Wikipedia, the free encyclopedia
Open star cluster
NGC 6568
AladinLite
Constellation Sagittarius
Position
equinox : J2000.0
Right ascension 18 h 12 m 44.2 s
declination -21 ° 37 ′ 41 ″
Appearance

classification III1m
Brightness  (visual) 8.6 likes
Angular expansion 12.0 '
Physical data

distance  3260 ly
(1000 pc )
history
Discovered by William Herschel
Discovery time May 26, 1786
Catalog names
 NGC  6568 • C 1809-216 • OCl 28 •  Cr  369 •  ESO  590-SC 006 •  GC  4388 •  H  VII 30 •  h  1998/3735 •

NGC 6568 is an open cluster of Trumpler type III1m in the constellation Sagittarius on the ecliptic . It has an apparent magnitude of 8.6 mag and an angular diameter of 12 '. The cluster is around 3,300 light years from the solar system and is estimated to be 500 million years old.

The object was discovered on May 26, 1786 by William Herschel .

Individual evidence

  1. NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c SEDS : NGC 6568
  3. WEBDA page on NGC 6568
  4. Seligman