| 词条 | MOA-2007-BLG-192L |
| 释义 |
| name = MOA-2007-BLG-192L }}{{Starbox observe | epoch = J2000.0 | constell = Sagittarius | ra = {{RA|18|08|04}}[1] | dec = {{DEC|−27|09|00}}[1] }}{{Starbox astrometry | dist_ly = 2300−400+700[3] | dist_pc = 700−120+210[2][3] }}{{Starbox detail | spectral_type = M | mass = 0.060+0.028−0.021[3] }}{{Starbox reference | Simbad = NAME+MOA-2007-BLG-192-L | star = MOA-2007-BLG-192-L | planet = b }}{{Starbox end}}MOA-2007-BLG-192L is a low-mass red dwarf star or brown dwarf, approximately 3,000 light-years away in the constellation of Sagittarius. It is estimated to have a mass approximately 6% of the Sun's.[3] In 2008, an Earth-sized extrasolar planet was announced to be orbiting this object.[8] Planetary systemThe discovery of a planet, MOA-2007-BLG-192Lb, orbiting this object was announced on June 2, 2008.[4] This planet, with a mass of approximately 3.3 times that of Earth, is one of the smallest known extrasolar planets. It was found when it caused a gravitational microlensing event on the night of May 24, 2007, which was detected as part of the MOA-II gravitational microlensing survey at the Mount John University Observatory in New Zealand.[3] {{OrbitboxPlanet short| exoplanet = b | mass_earth = 3.3+4.9−1.6[3] | separation = 0.62+0.22−0.16[3] }} See also
References1. ^1 {{cite web |url=http://exoplanet.eu/star.php?st=MOA-2007-BLG-192-L |title=Notes for star MOA-2007-BLG-192-L |accessdate=2008-06-16 |work=The Extrasolar Planets Encyclopaedia |publisher= |date= |deadurl=yes |archiveurl=https://web.archive.org/web/20080926011854/http://exoplanet.eu/star.php?st=MOA-2007-BLG-192-L |archivedate=2008-09-26 |df= }} 2. ^1 {{cite web|title=Notes for Star MOA-2007-BLG-192L|url=http://exoplanet.eu/star.php?st=MOA-2007-BLG-192-L|work=Extrasolar Planets Encyclopaedia|accessdate=29 February 2012|deadurl=yes|archiveurl=https://web.archive.org/web/20080926011854/http://exoplanet.eu/star.php?st=MOA-2007-BLG-192-L|archivedate=26 September 2008|df=}} 3. ^1 2 3 4 5 Table 3, {{cite journal |doi=10.1086/589940 |title=A Low‐Mass Planet with a Possible Sub‐Stellar‐Mass Host in Microlensing Event MOA‐2007‐BLG‐192 |date=2008 |author=Bennett, D. P. |journal=The Astrophysical Journal |volume=684 |pages=663–683 |last2=Bond |first2=I. A. |last3=Udalski |first3=A. |last4=Sumi |first4=T. |last5=Abe |first5=F. |last6=Fukui |first6=A. |last7=Furusawa |first7=K. |last8=Hearnshaw |first8=J. B. |last9=Holderness |first9=S. | displayauthors=8 |bibcode=2008ApJ...684..663B|arxiv = 0806.0025}} 4. ^1 MOA-2007-BLG-192Lb: A Low-Mass Planet with a Possible Sub-Stellar-Mass Host {{webarchive|url=https://web.archive.org/web/20080606045038/http://www.nd.edu/~bennett/moa07blg192/ |date=2008-06-06 }}, David P. Bennett. Accessed on line July 3, 2008. External links
3 : Sagittarius (constellation)|Planetary systems|Gravitational lensing |
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