WASP-28b
| Exoplanet | List of exoplanets | |
|---|---|---|
 | ||
| Parent star | ||
| Star | WASP-28[1] | |
| Right ascension | (α) | 23h 34m 27.87s[1] |
| Declination | (δ) | +01° 34′ 48.2″[1] |
| Apparent magnitude | (mV) | 12.03[1] |
| Distance | 1336.6 ± 228.2 ly (410 ± 70[1] pc) | |
| Spectral type | F8[1] | |
| Mass | (m) | 1.08 ± 0.04[1] M☉ |
| Radius | (r) | 1.05 ± 0.06[1] R☉ |
| Temperature | (T) | 6100 ± 150[1] K |
| Age | 5+3 −2[1] Gyr | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.04469 ± 0.00076[1] AU |
| Eccentricity | (e) | 0[1] |
| Orbital period | (P) | 3.408821 ± 0.000015[1] d |
| Inclination | (i) | 88.61 ± 0.67[1]° |
| Time of transit | (Tt) | 2455290.40519 ± 0.00031 [1] JD |
| Physical characteristics | ||
| Mass | (m) | 0.91 ± 0.06[1] MJ |
| Radius | (r) | 1.12 ± 0.06[1] RJ |
| Temperature | (T) | 1468 ± 37[1] K |
| Discovery information | ||
| Discovery date | 2010 | |
| Discoverer(s) | SuperWASP | |
| Discovery method | Transit[1] | |
| Discovery status | Published[1] | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
WASP-28b is an extrasolar planet orbiting WASP-28, a magnitude V = 12 star also known as 1SWASP J233427.87-013448.1 and 2MASS 23342787-0134482.[1] Since it orbits its star at a very low distance, the planet is very strongly irradiated.[1] As seen from the Earth, WASP-28b transits its host star every 3.408 days (3.408821 ± 0.000015[1] exactly) during about 3 hours (0.1267 ± 0.0013 days[1]).
Internal structure
The planet seems to be a gas giant with a low core mass (<~10M(Earth)) and a low heavy elements content (Z<~0.2).[1]
See also
References
External links
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Media related to WASP-28b at Wikimedia Commons - WASP Planets
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