OGLE-2016-BLG-0007
| Observation data Epoch J2000.0 Equinox ICRS | |
|---|---|
| Constellation | Sagittarius[1] |
| Right ascension | 17h 53m 25.45s[2] |
| Declination | −29° 38′ 32.1″[2] |
| Characteristics | |
| Spectral type | K? |
| Astrometry | |
| Distance | 14,000+3,600 −4,600 ly (4,300+1,100 −1,400 pc) |
| Details | |
| Mass | 0.59+0.41 −0.30[3] M☉ |
| Other designations | |
| KMT-2016-BLG-1991, MOA-2016-BLG-088[2] | |
| Database references | |
| SIMBAD | data |
OGLE-2016-BLG-0007(also known as MOA-2016-BLG-088L) is a Galactic bulge star believed to be of spectral type K, located approximately 14,020 light-years or 4,300 parsecs from Earth in the constellation Sagittarius.[3]
Planetary system
The star OGLE-2016-BLG-0007L has one known planet, discovered in 2025 using the gravitational microlensing method.[3] The object, named OGLE-2016-BLG-0007Lb, is a super-Earth with a mass of 1.32 M🜨 and is located at a distance of 10.1 astronomical units, similar to Saturn's distance from the Sun. The exoplanet's orbital period is approximately 39 years.[3] The radius of OGLE-2016-BLG-0007Lb has not been measured[3], but it was estimated by the NASA Eyes on Exoplanets program to be 1.09 R🜨.[4] Scientists believe this object is the core of a giant planet that did not have enough time to accumulate gas from the protoplanetary disk to become a gas giant similar to Jupiter or Saturn.[3]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination (°) |
Radius |
|---|---|---|---|---|---|---|
| b | 1.32+0.91 −0.67 M🜨 |
10.1+3.8 −3.4 |
14200+7700 −3300 |
— | — | — |
See also
References
- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
- 1 2 3 "SIMBAD query result: NAME OGLE-2016-BLG-0007 -- (Micro)Lensing Event". Centre de Données astronomiques de Strasbourg. Retrieved 2009-04-30.
- 1 2 3 4 5 6 Weicheng, Zang; Youn Kil, Jung (2025). "Microlensing events indicate that super-Earth exoplanets are common in Jupiter-like orbits". Science. 388 (6745): 400–404. arXiv:2504.20158. Bibcode:2025Sci...388..400Z. doi:10.1126/science.adn6088. PMID 40273242.
- ↑ "OGLE-2016-BLG-0007L b - NASA Science". science.nasa.gov. 28 April 2025. Retrieved 2025-07-07.
External links
- Martin, Pierre-Yves (2025). "Planet OGLE-2016-BLG-0007 b". exoplanet.eu. Retrieved 2025-04-28.
