BG Geminorum

From the Science Archives, the open-project database of science information
Jump to navigation Jump to search


BG Geminorum
Satellite image of binary star system BG Geminorum

Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Gemini
Right ascension 06h 03m 30.81s[1]
Declination +27° 41′ 50.7″[1]
Apparent magnitude (V) 12.9 - 13.6[2]
Characteristics
Spectral type K0I[2]
Astrometry
Distance7340 ly
(2.25±0.25[2] pc)
Orbit[2]
Period (P)91.645 days
Semi-major axis (a)>0.63 ± 0.04 AU
Inclination (i)>80°
Details
K0I
Mass>0.7[3] M
Temperature4,500[2] K
Black hole or class B
Mass>3.5[3] M
Other designations
BG Geminorum, 2MASS J06033081+2741506
Database references
SIMBADdata

BG Geminorum is an eclipsing binary star system in the constellation Gemini. It consists of a K0 supergiant with a more massive but unseen companion. The companion is likely to be either a black hole or class B star. Material from the K0 star is being transferred to an accretion disk surrounding the unidentified object.[3]

References[edit]

  1. 1.0 1.1 Cutri, R. M.; Skrutskie, M. F.; Van Dyk, S.; Beichman, C. A.; Carpenter, J. M.; Chester, T.; Cambresy, L.; Evans, T. et al. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". VizieR On-line Data Catalog: II/246. Originally published in: 2003yCat.2246....0C 2246. Bibcode 2003yCat.2246....0C.
  2. 2.0 2.1 2.2 2.3 2.4 Benson, Priscilla J (2000). "An Optical Study of BG Geminorum: An Ellipsoidal Binary with an Unseen Primary Star". The Astronomical Journal 119 (2): 890. arXiv:astro-ph/9911179. Bibcode 2000AJ....119..890B. doi:10.1086/301230.
  3. 3.0 3.1 3.2 Kenyon, Scott J (2002). "The Eclipsing Binary BG Geminorum: Improved Constraints on the Orbit and the Structure of the Accretion Disk". The Astronomical Journal 124 (2): 1054. arXiv:astro-ph/0205157. Bibcode 2002AJ....124.1054K. doi:10.1086/341651.


Add your comment
The Science Archives welcomes all comments. If you do not want to be anonymous, register or log in. It is free.


As a reminder, article comments are only for discussions on how to improve the article. Please direct other comments to a user's talk page. Please be formal and do not use excessive uppercase. Please be advised you may receive an automatic block if you break the article comments policy. For information regarding what is acceptable/not acceptable in article comments, please message Icons-flag-ru.png Joey (talk), Natalia (talk), Icons-flag-fr.png ynoss (talk), or Icons-flag-ca.png Daniel (older account/talk).


Template:Supergiant-star-stub Lua error in package.lua at line 95: loop or previous error loading module 'Module:Buffer'.