Tau¹ Gruis b

Tau¹ Gruis b, also known as HD 216435 b, is an extrasolar planet approximately 109 light-years away in the constellation of Grus (the Crane). The planet was discovered orbiting the star Tau¹ Gruis in September 2002. It was calculated that the planet orbits its sun at an average distance of 2.7 astronomical units. The planet is over 1.25 times as massive as Jupiter.

Tau¹ Gruis b

Discovery
Discovered by	Jones, et al.
Discovery site	Australia
Discovery date	17 September 2002
Detection method	Doppler spectroscopy
Orbital characteristics
Semi-major axis	2.561 AU (383,100,000 km)
Eccentricity	0.0703±0.0781
Orbital period	1311 ± 49 d
Time of periastron	2,450,870±210
Argument of periastron	99.8
Semi-amplitude	19.6±1.5
Star	Tau^1 Gruis

See also

• 55 Cancri
• Phi2 Pavonis
• Rho Indi b

References

• Jones; Butler, R. Paul; Tinney, C. G.; Marcy, Geoffrey W.; Penny, Alan J.; McCarthy, Chris; Carter, Brad D. (2003). "An exoplanet in orbit around τ1 Gruis". Monthly Notices of the Royal Astronomical Society. 341 (3): 948–952. arXiv:astro-ph/0209302. Bibcode:2003MNRAS.341..948J. doi:10.1046/j.1365-8711.2003.06481.x. Archived from the original on 2011-08-13. (web Preprint)

External links

• "Notes for planet HD 216435 b". The Extrasolar Planets Encyclopedia. Retrieved 2008-06-22.
• "Tau1 Gruis". Solstation. Retrieved 2008-06-22.