NGC 3293

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Open star cluster
NGC 3293
Image of the star cluster NGC 3293 and the surrounding, reddish HII region Gum 30 / RCW 51 with the MPG / ESO 2.2 m telescope.
Image of the star cluster NGC 3293 and the surrounding, reddish HII region Gum 30 / RCW  51 with the MPG / ESO 2.2 m telescope .
AladinLite
Constellation Keel of the ship
Position
equinox : J2000.0
Right ascension 10 h 35 m 48.7 s
declination -58 ° 13 ′ 28 ″
Appearance

classification I3r
Brightness  (visual) 4.7 likes
Brightness  (B-band) 4.84 likes
Angular expansion 5 '
Number of stars > 1500
Brightest star HD 91943; 6.52 mag
Variable stars > 10; including various β-Cephei variables , e.g. B. V381 Car (HD 92024)
Redness ( excess color  E (BV)) 0.29 ± 0.06
Physical data

Affiliation Milky Way , Carina Complex / Carina OB1
Radial velocity −12.3 ± 2.3 km / s
distance  7600 ly
(2327 pc )
diameter 11 ± 1 years
Age 10 million years
history
Discovered by Nicolas Louis de Lacaille
Discovery time 1751
Catalog names
 NGC  3293 • C 1033-579 • OCl 816 •  Mel  100 •  Cr  224 •  Dun  321 • Lund 3276 •  ESO  128-SC5 •  GC  2144 •  h  3276 • Raab 85

NGC 3293 is an open star cluster in the constellation Carina , it is one of the brightest star clusters in the southern sky. It is believed that most, if not all, of the fifty stars formed simultaneously less than 10 million years ago . NGC 3293 is approximately 8,000 light years from the solar system.

It was discovered in 1751 by Nicolas Louis de Lacaille during his stay in South Africa using a tiny telescope with an aperture of 0.5 inches.

literature

Web links

Commons : NGC3293  - Album containing pictures, videos and audio files

Individual evidence

  1. ↑ NASA / IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b c SEDS : NGC 3293
  3. ↑ WEBDA page on NGC 3293
  4. ↑ eso.org
  5. ↑ Seligman