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HD 33283 b

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Extrasolar planet in the constellation Lepus
HD 33283 b
Discovery
Discovered byJohnson et al.
Discovery site United States
Discovery dateApril 17, 2006
Detection methodDoppler spectroscopy
Orbital characteristics
Semi-major axis0.1508±0.0087 AU
Eccentricity0.399±0.056
Orbital period (sidereal)18.1991±0.0017 d
Time of periastron2463017.31±0.29
Argument of periastron155.5±7.1
Semi-amplitude22.4±1.6
StarHD 33283

HD 33283 b is an exoplanet orbiting around HD 33283. The mass of the planet is about /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 this, its orbit is eccentric, bringing it as close as 0.075 AU to the star and as far away as 0.215 AU.

See also

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. S2CID 119243619.
  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. S2CID 12421834.

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