HD 45652

HD 45652
Observation data
Epoch J2000.0 (ICRS)      Equinox J2000.0 (ICRS)
Constellation Monoceros
Right ascension 06h 29m 13.1917s[1]
Declination +10° 56′ 02.009″[1]
Apparent magnitude (V) 8.13[1]
Characteristics
Spectral type G8-K0[2]
B−V color index 0.85[1]
V−R color index 0.5[1]
R−I color index 0.4[1]
Astrometry
Proper motion (μ) RA: 206.14[1] mas/yr
Dec.: −62.69[1] mas/yr
Parallax (π)27.67 ± 1.29[1] mas
Distance118 ± 5 ly
(36 ± 2 pc)
Absolute magnitude (MV)5.3[3]
Details
Mass0.83 ± 0.05[2] M☉
Surface gravity (log g)4.32 ± 0.21[2] cgs
Temperature5312 ± 68[2] K
Metallicity[Fe/H] = 0.29 ± 0.07[2]
Age6.0 ± 2.9[4] Gyr
Other designations
BD+11 1197, GC 8415,  HIP 30905, NLTT 16570, SAO 95735.[1]
Database references
SIMBADdata

HD 45652 is a G8-K0 star located in the constellation Monoceros.[2] It is approximately 118 light years (36 parsecs) from Earth with apparent magnitude 8.13.[1]

In May 2008, the discovery of an extrasolar planet, HD 45652 b, orbiting the star was announced. The planet was detected by the radial velocity method, using observations made from 2005 to 2007.[2]

The HD 45652 planetary system[2]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b >0.47 MJ 0.23 43.6 ± 0.2 0.38 ± 0.06 — —

References

  1. 1 2 3 4 5 6 7 8 9 10 11 NLTT 16570, entry, SIMBAD. Accessed on line June 13, 2008.
  2. 1 2 3 4 5 6 7 8 Santos; et al. (2008). "ELODIE metallicity-biased search for transiting Hot Jupiters V. An intermediate-period Jovian planet orbiting HD 45652" (abstract). Astronomy and Astrophysics. 487 (1): 369–372. arXiv:0805.1019. Bibcode:2008A&A...487..369S. doi:10.1051/0004-6361:200809402. (web preprint)
  3. ↑ From parallax and apparent magnitude.
  4. ↑ Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302. Bibcode:2015A&A...575A..18B. doi:10.1051/0004-6361/201424951.
  • "Notes for star HD 45652". The Extrasolar Planets Encyclopaedia.
  • "NLTT 16570 -- High proper-motion Star". SIMBAD.

Coordinates: 06h 29m 13.1917s, +10° 56′ 02.009″


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