Astronomy:MOA-2007-BLG-192L
Observation data Equinox J2000.0]] (ICRS) | |
---|---|
Constellation | Sagittarius |
Right ascension | 18h 08m 04s[1] |
Declination | −27° 09′ 00″[1] |
Astrometry | |
Distance | 2300−400+700[2] ly (700−120+210[2][3] pc) |
Details | |
Mass | 0.060+0.028−0.021[3] M☉ |
Database references | |
SIMBAD | data |
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.[4]
Planetary system
The 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]
See also
References
- ↑ Jump up to: 1.0 1.1 "Notes for star MOA-2007-BLG-192-L". Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=MOA-2007-BLG-192-L. Retrieved 2008-06-16.
- ↑ Jump up to: 2.0 2.1 "Notes for Star MOA-2007-BLG-192L". Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=MOA-2007-BLG-192-L. Retrieved 29 February 2012.
- ↑ Jump up to: 3.0 3.1 3.2 3.3 3.4 3.5 Table 3, Bennett, D. P.; Bond, I. A.; Udalski, A.; Sumi, T.; Abe, F.; Fukui, A.; Furusawa, K.; Hearnshaw, J. B. et al. (2008). "A Low‐Mass Planet with a Possible Sub‐Stellar‐Mass Host in Microlensing Event MOA‐2007‐BLG‐192". The Astrophysical Journal 684 (1): 663–683. doi:10.1086/589940. Bibcode: 2008ApJ...684..663B.
- ↑ Jump up to: 4.0 4.1 MOA-2007-BLG-192Lb: A Low-Mass Planet with a Possible Sub-Stellar-Mass Host , David P. Bennett. Accessed on line July 3, 2008.
External links
- "MOA-2007-BLG-192Lb: A Low-Mass Planet with a Possible Sub-Stellar-Mass Host". http://www.nd.edu/~bennett/moa07blg192/.
- "Notes for star MOA-2007-BLG-192-L". Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=MOA-2007-BLG-192-L. Retrieved 2008-07-02.
Coordinates: 18h 08m 04s, −27° 09′ 00″
Original source: https://en.wikipedia.org/wiki/MOA-2007-BLG-192L.
Read more |