| 词条 | BG Geminorum |
| 释义 |
| name=BG Geminorum }}{{Starbox image | image= | caption= }}{{Starbox observe | constell=Gemini | epoch=J2000.0 (ICRS) | ra={{RA|06|03|30.81}}[1] | dec={{DEC|+27|41|50.7}}[1] | appmag_v= 12.9 - 13.6[3] }}{{Starbox character | class=K0I[2]}}{{Starbox astrometry | | dist_ly=7340 | dist_pc=2.25±0.25[2] }}{{Starbox orbit | reference=[2] | period_unitless=91.645 days | axis_unitless= >0.63 ± 0.04 AU | inclination=>80 }}{{Starbox detail | component1=K0I | mass=>0.7[3] | temperature=4,500[2] | component2=Black hole or class B | mass2=>3.5[3] }}{{Starbox catalog | names=BG Geminorum, 2MASS J06033081+2741506 }}{{Starbox reference |Simbad=BG+Gem }}{{Starbox end}}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] References1. ^1 {{cite journal|bibcode=2003yCat.2246....0C|title=VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)|journal=VizieR On-line Data Catalog: II/246. Originally published in: 2003yCat.2246....0C|volume=2246|author1=Cutri|first1=R. M.|last2=Skrutskie|first2=M. F.|last3=Van Dyk|first3=S.|last4=Beichman|first4=C. A.|last5=Carpenter|first5=J. M.|last6=Chester|first6=T.|last7=Cambresy|first7=L.|last8=Evans|first8=T.|last9=Fowler|first9=J.|last10=Gizis|first10=J.|last11=Howard|first11=E.|last12=Huchra|first12=J.|last13=Jarrett|first13=T.|last14=Kopan|first14=E. L.|last15=Kirkpatrick|first15=J. D.|last16=Light|first16=R. M.|last17=Marsh|first17=K. A.|last18=McCallon|first18=H.|last19=Schneider|first19=S.|last20=Stiening|first20=R.|last21=Sykes|first21=M.|last22=Weinberg|first22=M.|last23=Wheaton|first23=W. A.|last24=Wheelock|first24=S.|last25=Zacarias|first25=N.|year=2003}} {{Stars of Gemini}}{{supergiant-star-stub}}{{var-star-stub}}2. ^1 2 3 4 {{Cite journal| author=Benson, Priscilla J | title=An Optical Study of BG Geminorum: An Ellipsoidal Binary with an Unseen Primary Star | journal=The Astronomical Journal | volume=119 | issue=2 | pages=890 | bibcode=2000AJ....119..890B|arxiv=astro-ph/9911179| year=2000 | doi=10.1086/301230 }} 3. ^1 2 {{Cite journal| author=Kenyon, Scott J | title=The Eclipsing Binary BG Geminorum: Improved Constraints on the Orbit and the Structure of the Accretion Disk | journal=The Astronomical Journal | volume=124 | issue=2 | pages=1054 | bibcode=2002AJ....124.1054K|arxiv=astro-ph/0205157| year=2002 | doi=10.1086/341651 }} 5 : K-type supergiants|Eclipsing binaries|Gemini (constellation)|Objects with variable star designations|2MASS objects |
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