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 | |
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]
| 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 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
- ↑ 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.
- ↑ "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 27, 2012.
- ↑ 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.
- ↑ 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
Coordinates: 
01h 25m 12.5168s, +28° 34′ 00.096″
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