Gliese 146
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Horologium |
| Right ascension | 03h 35m 00.93995s[1] |
| Declination | −48° 25′ 08.9046″[1] |
| Apparent magnitude (V) | 8.64[2] |
| Astrometry | |
| Radial velocity (Rv) | +19.5[3] km/s |
| Proper motion (μ) | RA: 404.71[1] mas/yr Dec.: 308.13[1] mas/yr |
| Parallax (π) | 73.49 ± 0.71 mas[1] |
| Distance | 44.4 ± 0.4 ly (13.6 ± 0.1 pc) |
| Characteristics | |
| Evolutionary stage | Main Sequence[4] |
| Spectral type | K6.5V[4] |
| U−B color index | +1.24[2] |
| B−V color index | +1.30[2] |
| Variable type | suspected, range 8.57 to 8.7 mag, NSV 1203[5][6] |
| Details | |
| Radius | 0.68[7] R☉ |
| Surface gravity (log g) | 4.74[8] cgs |
| Temperature | 4,136[8] K |
| Metallicity [Fe/H] | 0.11[8] dex |
| Age | 970[9] Myr |
| Other designations | |
Gliese 146 is a K5V class star located in the constellation Horologium. At 44.4 light years, GJ 146 has an apparent magnitude of +8.57. Gliese 146 is also known as HD 22496, HIP 16711, SAO-216392, and LHS 1563.[10]
Its speed relative to the sun is 38.1 km/second, and its galactic orbit ranges between 20,800 and 25,400 light years from the center of the Galaxy. It is a suspected variable star.[5][6] It belongs to the Hyades supercluster of stars[11] It is one of 155 K type stars within 50 light years.[10] It is one of 500 stars selected for the SCUBA-2 All Sky Survey for stars with debris disks.[12]
See also
References
- ^ a b c d e 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.
- ^ a b c Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV data. SIMBAD, Bibcode:1986EgUBV........0M.
- ^ Evans, D. S. (June 20–24, 1966), Batten, Alan Henry; Heard, John Frederick (eds.), "The Revision of the General Catalogue of Radial Velocities", Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, University of Toronto: International Astronomical Union, Bibcode:1967IAUS...30...57E.
- ^ a b Gray, R.O.; et al. (July 2006), "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample", The Astronomical Journal, 132 (1): 161–170, arXiv:astro-ph/0603770, Bibcode:2006AJ....132..161G, doi:10.1086/504637.
- ^ a b c "HD 22496 -- High proper-motion Star", SIMBAD, Centre de Données astronomiques de Strasbourg, retrieved 2016-06-21
- ^ a b VizieR Detailed Page for NSV=1203
- ^ Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics", Astronomy and Astrophysics, 367 (2): 521–524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451.
- ^ a b c Franchini, M.; et al. (July 2014), "The FEROS-Lick/SDSS observational data base of spectral indices of FGK stars for stellar population studies", Monthly Notices of the Royal Astronomical Society, 442 (1): 220−228, arXiv:1405.0953, Bibcode:2014MNRAS.442..220F, doi:10.1093/mnras/stu873.
{{citation}}: CS1 maint: unflagged free DOI (link) - ^ Vican, Laura (June 2012), "Age Determination for 346 Nearby Stars in the Herschel DEBRIS Survey", The Astronomical Journal, 143 (6): 135, arXiv:1203.1966, Bibcode:2012AJ....143..135V, doi:10.1088/0004-6256/143/6/135.
- ^ a b K stars within 100 light-years - SolStation.com
- ^ siblings of HD 22496 (SIMBAD)
- ^ N. M. Phillips, J. S. Greaves, W. R. F. Dent, B. C. Matthews, W. S. Holland, M. C. Wyatt, B. Sibthorpe Target selection for the SUNS and DEBRIS surveys for debris discs in the solar neighbourhood
External links
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