17h56m35.51s, −29° 32′ 21.2″| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 17h56m 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 |
OGLE-TR-56 is a dim, distant, magnitude17Sun-like star located approximately 1,500 parsecs (4,900 light-years) away in the constellationofSagittarius.[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]
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 | — | — |
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