NGC 4609

Database links to NGC 4609

Open star cluster NGC 4609
AladinLite
Constellation	southern Cross
Position equinox : J2000.0
Right ascension	12 h 42 m 16.8 s
declination	-62 ° 59 ′ 45 ″
Appearance
classification	II1p
Brightness  (visual)	6.9 likes
Angular expansion	6.0 '
Redness ( excess color  E (BV))	0.37 ± 0.03
Physical data
Affiliation	Milky Way
Radial velocity	−21.3 ± 0.1 km / s
distance	approx. 4000 ly (1223 pc )
Age	approx. 50 million years
history
Discovered by	James Dunlop
Discovery time	May 12, 1826
Catalog names
NGC  4609 • C 1239-627 • OCl 890 •  Cr  263 •  Dun  272 • Lund 625 •  ESO  95-SC14 •  GC  3145 •  h  3407 •

NGC 4609 is a galactic open star cluster in the south of the constellation Crux , near the center of the Coalsack . The distance from NGC 4609 is estimated to be around 1300 parsecs. The cluster was discovered by the Scottish astronomer James Dunlop on May 12, 1826 .

literature

• Tirion, Rappaport, Lovi, Uranometria 2000.0, William Bell-inc. ISBN 0-943396-14-X

Web links

• Articles and pictures of NGC 4609 on wikisky.org

Individual evidence

1. ↑ NASA / IPAC EXTRAGALACTIC DATABASE
2. ↑ ^{a b c} SEDS : NGC 4609
3. ↑ WEBDA page on NGC 4609
4. ↑ Seligman