HD 153950

HD 153950
Observation data
Epoch J2000      Equinox J2000
Constellation Scorpius
Right ascension 17h 04m 30.870s[1]
Declination −43° 18′ 35.18″[1]
Apparent magnitude (V) 7.38
Characteristics
Spectral type F8V[2]
Apparent magnitude (B) ~7.90[2]
Apparent magnitude (J) 6.313 ±0.018[2]
Apparent magnitude (H) 6.078 ±0.034[2]
Apparent magnitude (K) 6.006 ±0.017[2]
Astrometry
Radial velocity (Rv)30.7 ± 2[2] km/s
Proper motion (μ) RA: 109.69 ± 1.08[1] mas/yr
Dec.: −142.15 ± 0.68[1] mas/yr
Parallax (π)20.19 ± 0.70[1] mas
Distance162 ± 6 ly
(50 ± 2 pc)
Details
Mass1.12 ± 0.03 M☉
Radius1.34 R☉
Temperature6076 ± 13 K
Metallicity-0.01 ±0.01
Age(4.3 ± 1) × 109 years
Other designations
HIP 83547, SAO 227597, CD-43 11380, LTT 6814, GSC 07881-00474, 2MASS J17043086-4318351, PPM 322565
Database references
SIMBADdata
Exoplanet Archivedata
Extrasolar Planets
Encyclopaedia		data

HD 153950 is an F-type main sequence star that is hotter and larger than our Sun. It is located in the southern constellation Scorpius. It is a 7th magnitude star at a distance of about 188 light years from Earth.[2]

Planetary system

In October 2008, an exoplanet of the star was discovered. This object was detected using the radial velocity method by search programs conducted using the HARPS spectrograph.[3] It has a mass roughly 2.73 times of Jupiter and potentially orbits in the habitable zone of its parent star.

The HD 153950 planetary system[3]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b ≥2.73 ± 0.05 MJ 1.28 ± 0.01 499.4 ± 3.6 0.34 ± 0.021 — —

See also

References

  1. 1 2 3 4 5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. 1 2 3 4 5 6 7 "SIMBAD query result: NLTT 44077 -- High proper-motion Star". Centre de Données astronomiques de Strasbourg. Retrieved 2009-06-11.
  3. 1 2 Moutou, C.; et al. (2009). "The HARPS search for southern extra-solar planets XVII. Six long-period giant planets around BD -17 0063, HD 20868, HD 73267, HD 131664, HD 145377, HD 153950". Astronomy and Astrophysics. 496 (2): 513–519. arXiv:0810.4662. Bibcode:2009A&A...496..513M. doi:10.1051/0004-6361:200810941.
  • "HD 153950". Exoplanets.

Coordinates: 17h 04m 30.871s, −43° 18′ 35.17″


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