HD 8574

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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
Distance 145 ± 3 ly
(45 ± 1 pc)
Details
Temperature 6028 ± 6.7 [2] K
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 our 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[edit]

References[edit]

  1. ^ a b c d e 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. ^ Kovtyukh, V. V. et al. (2003). "High precision effective temperatures for 181 F-K dwarfs from line-depth ratios". Astronomy and Astrophysics 411 (3): 559–564. arXiv:astro-ph/0308429. Bibcode:2003A&A...411..559K. doi:10.1051/0004-6361:20031378. 
  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/0308281. 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/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. 

External links[edit]

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