HD 14412
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Fornax |
| Right ascension | 02h 18m 58.50473s[1] |
| Declination | −25° 56′ 44.4753″[1] |
| Apparent magnitude (V) | 6.33[2] |
| Characteristics | |
| Spectral type | G8 V[2] |
| U−B color index | +0.20[3] |
| B−V color index | +0.71[3] |
| Astrometry | |
| Radial velocity (Rv) | +7.2[4] km/s |
| Proper motion (μ) | RA: –217.55[1] mas/yr Dec.: +444.44[1] mas/yr |
| Parallax (π) | 78.93 ± 0.35[1] mas |
| Distance | 41.3 ± 0.2 ly (12.67 ± 0.06 pc) |
| Details | |
| Mass | 0.821[5] M☉ |
| Radius | 0.77[5] R☉ |
| Surface gravity (log g) | 4.59[2] cgs |
| Temperature | 5,359[2] K |
| Metallicity [Fe/H] | –0.46[2] dex |
| Rotational velocity (v sin i) | 3.26[6] km/s |
| Age | 9.61[2] Gyr |
| Other designations | |
HD 14412 (22 G. Fornacis) is the Henry Draper catalogue designation for an ordinary star in the southern constellation Fornax. It has an apparent visual magnitude of 6.33,[2] which, according to the Bortle scale, can be dimly seen with the naked eye from rural locations. Based upon an annual parallax shift of 0.078.93 arc seconds as measured by the Hipparcos satellite, this system is 41.3 light-years (12.67 parsecs) from Earth.
This star has a stellar classification of G8 V,[2] indicating that it is a main sequence star. Based upon models, it has 82% of the Sun's mass and 77% of the radius.[5] HD 14412 is spinning with a projected rotational velocity of 3.26 km/s[6] and is about 9.61 billion years old.[2] The stellar atmosphere has an effective temperature of 5,359 K,[2] giving it the yellow-hued glow of a G-type star.[8]
HD 14412 has been examined for signs of an orbiting debris disk or a planetary companion, but as of 2012 none has been discovered.[9]
References
- 1 2 3 4 5 van Leeuwen, F. (November 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. - 1 2 3 4 5 6 7 8 9 10 Maldonado, J.; et al. (May 2012), "Metallicity of solar-type stars with debris discs and planets", Astronomy and Astrophysics, 541, arXiv:1202.5884, Bibcode:2012A&A...541A..40M, doi:10.1051/0004-6361/201218800.
- 1 2 Carney, B. W. (September 1978), "Southern subdwarf photometry", Astronomical Journal, 83: 1087–1089, Bibcode:1978AJ.....83.1087C, doi:10.1086/112295.
- ↑ Nordström, B.; et al. (May 2004), "The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ˜14,000 F and G dwarfs", Astronomy and Astrophysics, 418: 989–1019, arXiv:astro-ph/0405198, Bibcode:2004A&A...418..989N, doi:10.1051/0004-6361:20035959.
- 1 2 3 Takeda, Genya; et al. (2007). "Structure and Evolution of Nearby Stars with Planets. II. Physical Properties of ~1000 Cool Stars from the SPOCS Catalog". The Astrophysical Journal Supplement Series. 168 (2): 297–318. arXiv:astro-ph/0607235. Bibcode:2007ApJS..168..297T. doi:10.1086/509763.
- 1 2 Martínez-Arnáiz, R.; et al. (September 2010), "Chromospheric activity and rotation of FGK stars in the solar vicinity. An estimation of the radial velocity jitter", Astronomy and Astrophysics, 520: A79, arXiv:1002.4391, Bibcode:2010A&A...520A..79M, doi:10.1051/0004-6361/200913725.
- ↑ "LHS 1387 -- High proper-motion Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2014-01-26.
- ↑ "The Colour of Stars", Australia Telescope, Outreach and Education, Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, retrieved 2012-01-16.
- ↑ Maldonado, J.; et al. (May 2012), "Metallicity of solar-type stars with debris discs and planets", Astronomy & Astrophysics, 541: A40, arXiv:1202.5884, Bibcode:2012A&A...541A..40M, doi:10.1051/0004-6361/201218800.
External links
- "4C00205". ARICNS. Retrieved 2006-08-15.
- "HD 14412 -- High proper-motion Star". SIMBAD: Centre de Données astronomiques de Strasbourg. Retrieved 2006-08-15.