HD 2039 b

HD 2039 b
Discovery
Discovered by	Tinney, Butler, Marcy
Discovery date	2002
Detection method	Doppler Spectroscopy
Orbital characteristics
Semi-major axis	2.19 ± 0.2 AU (328,000,000 ± 30,000,000 km)
Eccentricity	0.68 ± 0.15
Orbital period (sidereal)	1192.582 ± 150 d
Time of periastron	2449645.48 ± 150
Argument of periastron	223
Semi-amplitude	153 ± 22
Star	HD 2039

Last updated September 09, 2025

HD 2039 b is an extrasolar planet orbiting the star HD 2039. It is almost five times as massive as Jupiter and has a very eccentric orbit.^[1]^[2]

References

↑ Tinney, C. G.; et al. (2003). "Four New Planets Orbiting Metal-enriched Stars". The Astrophysical Journal. 587 (1): 423–428. arXiv: astro-ph/0207128 . Bibcode: 2003ApJ...587..423T . doi: 10.1086/368068 .
↑ 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 .

External links

The Extrasolar Planets Encyclopaedia: HD 2039

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[Tinney2003-1] Tinney, C. G.; et al. (2003). "Four New Planets Orbiting Metal-enriched Stars". The Astrophysical Journal. 587 (1): 423–428. arXiv: astro-ph/0207128 . Bibcode: 2003ApJ...587..423T . doi: 10.1086/368068 .

[Butler2006-2] 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 .

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