NGC 2423-3 b
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Exoplanet | List of exoplanets | |
---|---|---|
Parent star | ||
Star | NGC 2423-3 | |
Constellation | Puppis | |
Right ascension | (α) | 07h 37m 09s |
Declination | (δ) | −13° 54′ 24″ |
Distance | 2498 ly (766 pc) |
|
Spectral type | K-M III | |
Orbital elements | ||
Semi-major axis | (a) | 2.1 AU |
Periastron | (q) | 1.66 AU |
Apastron | (Q) | 2.54 AU |
Eccentricity | (e) | 0.21 ± 0.07 |
Orbital period | (P) | 714.3 ± 5.3 d |
Argument of periastron |
(ω) | 18 ± 10° |
Time of periastron | (T0) | 2,453,213 ± 21 JD |
Semi-amplitude | (K) | 71.5 m/s |
Physical characteristics | ||
Mass | (m) | >10.6 MJ |
Discovery information | ||
Discovery date | 21 June 2007 | |
Discoverer(s) | Mayor et al. | |
Discovery method | Doppler spectroscopy | |
Discovery site | ![]() |
|
Discovery status | Published |
NGC 2423-3b is an extrasolar planet[1] approximately 2498 light-years away in the constellation of Puppis. The planet was announced in 2007 to be orbiting the red giant star NGC 2423-3 (which in turn is part of the NGC 2423 open cluster). The planet has a mass at least 10.6 times that of Jupiter. Only the minimum mass is known since the orbital inclination is not known, so it may instead be a brown dwarf.
This planet was discovered by Chad Lovis and Michel Mayor in June 2007. Lovis had also found three Neptune-mass planets orbiting HD 69830 in May 2006, also in Puppis.
See also
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- SIMBAD NGC 2423 3 b
External links
- Lua error in package.lua at line 80: module 'strict' not found.
- Lua error in package.lua at line 80: module 'strict' not found.
Coordinates: 07h 37m 09s, −13° 54′ 24″
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