MOA-2007-BLG-192Lb
Coordinates: 18h 08m 04s, −27° 09′ 00″
Discovery | |
---|---|
Discovered by | Bennett et al. |
Discovery site | Mount John University Observatory, New Zealand |
Discovery date | 30 May 2008 |
Gravitational microlensing | |
Orbital characteristics | |
Star | MOA-2007-BLG-192L |
Physical characteristics | |
Mass | 3.3+4.9−1.6[1] ME |
MOA-2007-BLG-192Lb, occasionally shortened to MOA-192 b,microlensing event on May 24, 2007, which was detected as part of the MOA-II microlensing survey at the Mount John University Observatory in New Zealand.[1]
The system's primary is small as well. At roughly 6% the mass of the Sun, it is probably too small to sustain fusion reactions, making it a dimly glowing brown dwarf.[3] Also, the estimated projected distance between MOA-2007-BLG-192Lb and its primary is approximately 0.62 astronomical units.[1] That means the planet probably formed with much ice and gases, more like Neptune (an ice giant planet) in composition than Earth (a terrestrial planet), according to astronomer David Bennett of the University of Notre Dame.[3]
References
- ^ S2CID 14467194
- JPL. Accessed on line July 2, 2008.
- ^ a b Smallest Extrasolar Planet Portends Other Earths Archived 2009-02-28 at the Wayback Machine, Richard A. Kerr, ScienceNOW Daily News, June 2, 2008. Accessed on line June 16, 2008.
External links
- "MOA-2007-BLG-192Lb: A Low-Mass Planet with a Possible Sub-Stellar-Mass Host". Archived from the original on 2008-06-06. Retrieved 2008-06-28.