OGLE-TR-56 is a dim, distant, magnitude 17 Sun-like star located approximately 1,500 parsecs (4,900 light-years) away in the constellation of Sagittarius.[1] This star is listed as an eclipsing type variable star with the eclipse due to the passage of the planet as noted in the discovery papers.[5]
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Sagittarius |
Right ascension | 17h 56m 35.51s[1] |
Declination | –29° 32′ 21.2″[1] |
Apparent magnitude (V) | 16.560<[1] |
Characteristics | |
Spectral type | G[2] |
Variable type | EP[3] |
Astrometry | |
Distance | ~5,000 ly (~1,500 pc) |
Details | |
Mass | 1.17 ± 0.04[4] M☉ |
Radius | 1.32 ± 0.06[4] R☉ |
Other designations | |
V5157 Sagittarii, SBC9 2452 | |
Database references | |
SIMBAD | data |
Extrasolar Planets Encyclopaedia | data |
In 2002, a possible planet was discovered transiting the star,[5] and after additional observations to rule out false positives, it was confirmed. At the time of discovery it was the shortest-period planet.[6][7]
Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | 1.29 ± 0.12[4] MJ | 0.0225 ± 0.0004[2] | 1.211909 ± 0.000001[4] | 0 | — | — |
Constellation of Sagittarius | |
---|---|
Bayer | |
Flamsteed | |
Variable |
|
HR |
|
HD | |
Gliese |
|
MOA | |
OGLE | |
PSR |
|
WR | |
Other |
|
Exoplanets |
|