HD 8574

HD 8574
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Pisces
Right ascension 01h 25m 12.52s[1]
Declination +28° 34′ 00.1″[1]
Apparent magnitude (V) +7.12
Characteristics
Spectral type F8
Astrometry
Proper motion (μ) RA: 250.87 ± 0.58[1] mas/yr
Dec.: -158.06 ± 0.34[1] mas/yr
Parallax (π)22.44 ± 0.53[1] mas
Distance145 ± 3 ly
(45 ± 1 pc)
Details
Mass1.144 ± 0.003[2] M☉
Radius1.39 ± 0.01[2] R☉
Luminosity2.335 ± 0.001[2] L☉
Surface gravity (log g)4.21 ± 0.03[2] cgs
Temperature6065 ± 6[2] K
Age5.0 ± 0.1[2] Gyr
Other designations
BD+27º225, GC 1710, HIP 6643, LTT 10508, NLTT 4709, SAO 74702

HD 8574 is a yellow-white star in the constellation Pisces. It has an apparent magnitude of +7.12 and absolute magnitude of +3.90. The stellar distance is 45 parsecs or 145 light years from the Solar System.

In 2001, an extrasolar planet in an eccentric orbit was announced by the European Southern Observatory.[3] The discovery was published in 2003.[4]

The HD 8574 planetary system[5]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b >1.96 ± 0.18 MJ 0.76 ± 0.04 225 ± 1.14 0.37 ± 0.082 — —

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:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. 1 2 3 4 5 6 Bonfanti, A.; et al. (2015). "Revising the ages of planet-hosting stars". Astronomy and Astrophysics. 575. A18. arXiv:1411.4302Freely accessible. Bibcode:2015A&A...575A..18B. doi:10.1051/0004-6361/201424951.
  3. ↑ "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 27, 2012.
  4. ↑ 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/0308281Freely accessible. Bibcode:2003A&A...410.1039P. doi:10.1051/0004-6361:20031340.
  5. ↑ Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493Freely accessible. Bibcode:2006ApJ...646..505B. doi:10.1086/504701.

Coordinates: 01h 25m 12.5168s, +28° 34′ 00.096″


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