HD 33283 b

HD 33283 b is an exoplanet orbiting around HD 33283. The mass of the planet is about ¹/₃ that of Jupiter or about the same as Saturn. However, the planet orbits very close to the star, taking only 18 days to complete its orbit with average speed of 86.5 km/s (311400 km/h). Despite of this, its orbit is eccentric, bringing it as close as 0.075 AU to the star and as far away as 0.215 AU.[2]

HD 33283 b

Discovery
Discovered by	Johnson et al.
Discovery site	United States
Discovery date	April 17, 2006
Detection method	Doppler spectroscopy
Orbital characteristics
Semi-major axis	0.1508±0.0087 AU
Eccentricity	0.399±0.056[1]
Orbital period	18.1991±0.0017[1] d
Time of periastron	2463017.31±0.29[1]
Argument of periastron	155.5±7.1[1]
Semi-amplitude	22.4±1.6[1]
Star	HD 33283

See also

• HD 33564 b
• HD 86081 b
• HD 224693 b

References

1. Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5.
2. Johnson, John Asher; et al. (2006). "The N2K Consortium. VI. Doppler Shifts without Templates and Three New Short-Period Planets". The Astrophysical Journal. 647 (1): 600–611. arXiv:astro-ph/0604348. Bibcode:2006ApJ...647..600J. doi:10.1086/505173.

External links

• "HD 33283". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-09-10.