HD 24040 b
Exoplanet | List of exoplanets | |
---|---|---|
Parent star | ||
Star | HD 24040 | |
Constellation | Taurus | |
Right ascension | (α) | 03h 50m 22.9681s |
Declination | (δ) | +17° 28′ 34.919″ |
Apparent magnitude | (mV) | 7.52 |
Distance | 151.7 ± 7.5 ly (46.51 ± 2.3 pc) | |
Spectral type | G0 | |
Mass | (m) | 1.18 M☉ |
Orbital elements | ||
Semi-major axis | (a) | 4.68 AU (700 Gm) |
100.6 mas | ||
Periastron | (q) | 4.36 AU (652 Gm) |
Apastron | (Q) | 5.00 AU (748 Gm) |
Eccentricity | (e) | 0.068 ± 0.039 |
Orbital period | (P) | 3400 ± 160 d (9.3 y) |
Orbital speed | (υ) | 15 km/s |
Time of periastron | (T0) | 2,450,730 ± 430 JD |
Semi-amplitude | (K) | 48.9 ± 1.7 m/s |
Physical characteristics | ||
Mass | (m) | >4.04 MJ |
Discovery information | ||
Discovery date | March 12, 2006 | |
Discoverer(s) | Butler et al. | |
Discovery method | Doppler spectroscopy | |
Discovery site | California, USA | |
Discovery status | Published[1] | |
Other designations | ||
HIP 17960 b | ||
Database references | ||
Extrasolar Planets Encyclopaedia | data | |
SIMBAD | data | |
Exoplanet Archive | data | |
Open Exoplanet Catalogue | data |
HD 24040 b is a long-period exoplanet taking approximately 3700 days to orbit at 4.92 astronomical units in a circular orbit. It has minimum mass 4 times that of Jupiter. To have more accurate true mass, inclination must be known, yet the inclination is not known.[1][2] The refined mass of HD 24040b Msini = 4,10 + -0,12 mass of Jupiter, orbital parameters: the period of 3490 (9.56 years) + - 25 days, the semimajor axis of 4.637 + -0.067 AE. eccentricity of 0.047 + -0.020.
See also
References
- 1 2 Wright, J. T.; et al. (2007). "Four New Exoplanets and Hints of Additional Substellar Companions to Exoplanet Host Stars". The Astrophysical Journal. 657 (1): 533–545. arXiv:astro-ph/0611658. Bibcode:2007ApJ...657..533W. doi:10.1086/510553.
- ↑ Boisse, I.; et al. (2012). "The SOPHIE search for northern extrasolar planets. V. Follow-up of ELODIE candidates: Jupiter-analogs around Sun-like stars". Astronomy and Astrophysics. 545. A55. arXiv:1205.5835. Bibcode:2012A&A...545A..55B. doi:10.1051/0004-6361/201118419.
External links
- "HD 24040". Exoplanets.
Coordinates: 03h 50m 22.9681s, +17° 28′ 34.919″
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