OGLE-TR-56
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| Observation data Equinox J2000.0 |
|
|---|---|
| Constellation | Sagittarius |
| Right ascension | 17h 56m 35.51s |
| Declination | -29° 32' 21.2" |
| Apparent magnitude (V) | 16.6 |
| Distance | 4,892 ly (1,501 pc) |
| Spectral type | G? |
OGLE-TR-56 is a star in the constellation Sagittarius. In 2003, an exoplanet was discovered orbiting the star.
[edit] OGLE-TR-56b
| Orbital elements | ||
|---|---|---|
| Semi-major axis a: | 0.022 (± 0.0004) AU | |
| Eccentricity e: | 0 | |
| Orbital period P: | 1.2119189 (± 0.0000059) d |
|
| Inclination i: | 81 (± 2.2)° | |
| Longitude of periastron ω: |
?° | |
| Time of periastron τ: | 52075.1046 (± 0.0017) JD |
|
| Physical characteristics | ||
| Mass: | 1.45 (± 0.23) MJ | |
| Radius: | 1.23 RJ | |
| Density: | ? kg/m³ | |
| Temperature: | ? K | |
| Discovery | ||
| Discovery date: | 2003 | |
| Detection method(s): | ||
| Discoverer(s): | Konacki et al. | |
OGLE-TR-56b is an extrasolar hot jupiter discovered in 2002 by the OGLE project using the transit method and confirmed in 2003 by the Doppler technique. As of 2006 it has the shortest orbital period of any known extrasolar planet.
[edit] References
- Konacki et al. (2003). "An extrasolar planet that transits the disk of its parent star". Nature 421: 507-509.
[edit] External links
- OGLE-TR-56 (Extrasolar Visions)
- OGLE-TR-56b (Extrasolar Visions)
- Planet: OGLE-TR-56b (EPE)
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