WASP-18
| Observation data Epoch J2000.0[1] Equinox | |
|---|---|
| Constellation | Phoenix[2] |
| Right ascension | 01h 37m 24.95s[2] |
| Declination | −45° 40′ 40.8″[2] |
| Apparent magnitude (V) | 9.29[2] |
| Other designations | |
| HD 10069, HIP 7562, PPM 306061, SAO 215585 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
WASP-18 is a magnitude 9 star located in the Phoenix constellation of the southern hemisphere.[2] It has a mass of 1.25 solar masses.[3]
Planetary system
In 2009 SuperWASP project announced that a large hot Jupiter type extrasolar planet, WASP-18b, was orbiting very close to this star.[1]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ~10[1] MJ | 0.020206 | 0.94145299[2] | 0.0092 | — | — |
References
- ^ a b c Hellier, C; Anderson, DR; Cameron, AC; Gillon, M; Hebb, L; Maxted, PF; Queloz, D; Smalley, B; Triaud, AH (2009-08-27). "An orbital period of 0.94 days for the hot-Jupiter planet WASP-18b". Nature. 460 (7259). Nature Publishing Group: 1098–1100. Bibcode:2009Natur.460.1098H. doi:10.1038/nature08245. PMID 19713926.
- ^ a b c d e f "WASP-18b". Exoplanet Transit Database. Retrieved 2009-08-29.
- ^ PlanetQuest: WASP-18 b
See also
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