HD 143361 b

HD 143361 b
Exoplanet List of exoplanets
Parent star
Star HD 143361
Constellation Norma
Right ascension (α) 16h 01m 50.3484s[1]
Declination (δ) −44° 26′ 04.341″[1]
Apparent magnitude (mV) 9.20
Distance224±4[1] ly
(69±1[1] pc)
Spectral type G6V
Orbital elements
Semi-major axis(a) 1.98±0.07[2] AU
Eccentricity (e) 0.193±0.015[2]
Orbital period(P) 1046.2±3.2[2] d
Argument of
periastron		 (ω) 241.2±3.4[2]°
Semi-amplitude (K) 72.1±1.0[2] m/s
Physical characteristics
Minimum mass(m sin i)3.48±0.24[2] MJ
Discovery information
Discovery date October 29, 2008
Discoverer(s) Minniti et al.
Discovery method Doppler spectroscopy
Discovery status Published[3]
Other designations
HIP 78521 b
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

HD 143361 b is an extrasolar planet located approximately 194 light-years away in the constellation of Norma, orbiting the 9th magnitude G-type main sequence star HD 143361. This planet has a minimum mass of 3.0 times that of Jupiter. Because the inclination is not known, the true mass is not known. This planet orbits at a distance of 2.0 AU with an orbital eccentricity of 0.18.

This object was detected using the radial velocity method during an astronomical survey conducted by the Magellan Planet Search Program using the MIKE echelle spectrograph on the 6.5-m Magellan II (Clay) telescope.[3]

References

  1. 1 2 3 4 Brown, A. G. A; et al. (2016). "Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties". Astronomy and Astrophysics. 595. A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512. Gaia Data Release 1 catalog entry
  2. 1 2 3 4 5 6 Jenkins, J. S.; et al. (2017). "New planetary systems from the Calan–Hertfordshire Extrasolar Planet Search". Monthly Notices of the Royal Astronomical Society. 466: 443–473. arXiv:1603.09391. Bibcode:2017MNRAS.466..443J. doi:10.1093/mnras/stw2811.
  3. 1 2 Minniti, Dante; et al. (2009). "Low-Mass Companions for Five Solar-Type Stars From the Magellan Planet Search Program". The Astrophysical Journal. 693 (2): 1424–1430. arXiv:0810.5348. Bibcode:2009ApJ...693.1424M. doi:10.1088/0004-637X/693/2/1424.
  • "HD 143361 b". Exoplanets.

Coordinates: 16h 01m 50.3484s, −44° 26′ 04.335″


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