HD 40979 b

HD 40979 b

Discovery
Discovered by	Fischer et al.
Discovery site	Lick and Keck Observatory Fairborn Observatory  USA
Discovery date	13 June 2002
Detection method	Radial velocity
Orbital characteristics
Apastron	1.085 AU (162,300,000 km)
Periastron	0.625 AU (93,500,000 km)
Semi-major axis	0.855 ± 0.049 AU (127,900,000 ± 7,300,000 km)
Eccentricity	0.269 ± 0.034
Orbital period (sidereal)	263.84 ± 0.71 d 0.72 y
Average orbital speed	35.5
Time of periastron	2,451,748.1 ± 8.6
Argument of periastron	318 ± 10
Semi-amplitude	112 ± 5
Star	HD 40979

HD 40979 b is an extrasolar planet orbiting the star HD 40979, was detected from the Lick and Keck observatories and photometric observations at Fairborn Observatory reveal low-amplitude brightness variations in HD 40979. It is thought to be a large gas giant planet. It was discovered in 2002 by Debra Fischer.

References

1. ^ a b Fischer, Debra A.; et al. (2003). "A Planetary Companion to HD 40979 and Additional Planets Orbiting HD 12661 and HD 38529". The Astrophysical Journal. 586 (2): 1394–1408. Bibcode:2003ApJ...586.1394F. doi:10.1086/367889.

• Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. S2CID 119067572.
• MUGRAUER M.; NEUHAEUSER R.; MAZEH T. (2007). "The multiplicity of exoplanet host stars. Spectroscopic confirmation of the companions GJ 3021B and HD 27442B, one new planet host triple-star system, and global statistics". Astronomy and Astrophysics. 469 (2): 755–770. arXiv:astro-ph/0703795. Bibcode:2007A&A...469..755M. doi:10.1051/0004-6361:20065883. S2CID 204926851.

External links

• "HD 40979". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-10-29.
• "Simulation HD 40979b". obspm.fr/. Archived from the original on 2007-12-03. Retrieved 2008-08-20.

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