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HD 23596

Coordinates: Sky map 03h 48m 00.3739s, +40° 31′ 50.287″
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HD 23596
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Perseus
Right ascension 03h 48m 00.374s[1]
Declination +40° 31′ 50.29″[1]
Apparent magnitude (V) 7.24
Characteristics
Spectral type F8
Astrometry
Proper motion (μ) RA: 53.95 ± 0.48[1] mas/yr
Dec.: 21.12 ± 0.42[1] mas/yr
Parallax (π)19.83 ± 0.49 mas[1]
Distance164 ± 4 ly
(50 ± 1 pc)
Details
Mass1.2 ± 0.04[2] M☉
Radius1.53 ± 0.04[2] R☉
Luminosity2.63 ± 0.03[2] L☉
Surface gravity (log g)4.14 ± 0.03[2] cgs
Temperature5953 ± 48[2] K
Age5.0 ± 0.7[2] Gyr
Other designations
BD+40º835, HIP 17747, SAO 39110

HD 23596 is a 7th magnitude star approximately 164 light years away[1] in the constellation Perseus. The visual luminosity of the star is 2.63 times greater than our Sun.[2] HD 23596 dwarfs the Sun is terms of physical properties; including mass, radius, age, metallicity, and temperature. The spectrum of the star is F8.

Planetary system

In June 2002, a massive long-period planet orbiting the star was announced.[3]

The HD 23596 planetary system[3]
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination Radius
b >8.10 MJ 2.88 1565 ± 21 0.292 ± 0.023 — —

References

  1. ^ a b c d e f 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. ^ a b c d e f g 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.
  3. ^ a b Perrier, C.; et al. (2003). "The ELODIE survey for northern extra-solar planets. I. Six new extra-solar planet candidates". Astronomy and Astrophysics. 410 (3): 1039–1049. arXiv:astro-ph/0308281. Bibcode:2003A&A...410.1039P. doi:10.1051/0004-6361:20031340.


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