NGC 3293

NGC 3293 is an open cluster in the Carina constellation. It was discovered by Nicolas-Louis de Lacaille in 1751.[3] It consists of more than 100 stars brighter than 14th magnitude in a 10 arc minute field, the brightest of which are blue supergiants of apparent magnitude 6.5 and 6.7. There is also a 7th magnitude pulsating red supergiant, V361 Carinae.[4]

NGC 3293
NGC 3293 taken by the Wide Field Imager on the MPG/ESO 2.2-meter telescope
Observation data (J2000 epoch)
ConstellationCarina
Right ascension10h 35m 24s[1]
Declination−58° 14′[1]
Distance9,000 ly (2,750 pc[2])
Apparent magnitude (V)4.7
Apparent dimensions (V)8.2′[2]
Physical characteristics
Radius13.2 ly[2]
Estimated age8 Myr[2]
Other designationsCr 224

References
  1. Kharchenko, N. V.; Piskunov, A. E.; Schilbach, E.; Röser, S.; Scholz, R.-D. (2013). "Global survey of star clusters in the Milky Way. II. The catalogue of basic parameters". Astronomy & Astrophysics. 558: A53. arXiv:1308.5822. Bibcode:2013A&A...558A..53K. doi:10.1051/0004-6361/201322302.
  2. Baume, G.; Vázquez, R. A.; Carraro, G.; Feinstein, A. (2003). "Photometric study of the young open cluster NGC 3293". Astronomy and Astrophysics. 402 (2): 531–540. arXiv:astro-ph/0301529. Bibcode:2003A&A...402..549B. doi:10.1051/0004-6361:20030223.
  3. Seligman, Courtney. "NGC Objects: NGC 3250 - 3299". cseligman.com. Retrieved 14 February 2019.
  4. Dufton, P. L.; Smartt, S. J.; Lee, J. K.; Ryans, R. S. I.; Hunter, I.; Evans, C. J.; Herrero, A.; Trundle, C.; Lennon, D. J.; Irwin, M. J.; Kaufer, A. (2006). "The VLT-FLAMES survey of massive stars: Stellar parameters and rotational velocities in NGC 3293, NGC 4755 and NGC 6611". Astronomy and Astrophysics. 457 (1): 265–280. arXiv:astro-ph/0606409. Bibcode:2006A&A...457..265D. doi:10.1051/0004-6361:20065392.


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