HD 11506 b

HD 11506 b

Discovery
Discovered by	Fischer et al.
Discovery site	California, United States
Discovery date	April 10, 2007
Detection method	Radial velocity
Orbital characteristics [1]
Semi-major axis	2.800+0.123 −0.136  AU
Eccentricity	0.391±0.010
Orbital period (sidereal)	4.418 ± 0.012 years (1,613.7 ± 4.4  d)
Inclination	112.598°+23.304° −52.700°
Longitude of ascending node	80.266°+23.453° −41.201°
Time of periastron	2451787.838+16.442 −12.388
Argument of periastron	217.469°+2.387° −2.314°
Semi-amplitude	78.402+1.408 −1.146  m/s
Star	HD 11506
Physical characteristics [1]
Mass	4.880+1.986 −0.333  MJ

HD 11506 b is an extrasolar planet that orbits the star HD 11506 167 light years away in the constellation of Cetus. This planet was discovered in 2007 by the N2K Consortium using the Keck telescope to detect the radial velocity variation of the star caused by the planet. ^[2] A second planet, HD 11506 c, was discovered in 2015. ^[3]

In 2022, the true mass and inclination of HD 11506 b were measured via astrometry, along with the discovery of a third planet in the system. ^[1]

See also

• HD 11506 c

References

1. Feng, Fabo; Butler, R. Paul; et al. (August 2022). "3D Selection of 167 Substellar Companions to Nearby Stars". The Astrophysical Journal Supplement Series . 262 (21): 21. arXiv: 2208.12720 . Bibcode:2022ApJS..262...21F. doi: 10.3847/1538-4365/ac7e57 . S2CID   251864022.
2. Fischer, Debra A.; et al. (2007). "Five Intermediate-Period Planets from the N2K Sample". The Astrophysical Journal. 669 (2): 1336–1344. arXiv: 0704.1191 . Bibcode:2007ApJ...669.1336F. doi:10.1086/521869. S2CID   7774321.
3. Giguere, Matthew J.; et al. (2015). "Newly Discovered Planets Orbiting HD 5319, HD 11506, HD 75784 and HD 10442 from the N2K Consortium". The Astrophysical Journal. 799 (1). 89. arXiv: 1411.5374 . Bibcode:2015ApJ...799...89G. doi:10.1088/0004-637X/799/1/89. S2CID   56121568.