Astronomy:24 Camelopardalis
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 05h 43m 01.67384s[1] |
| Declination | +56° 34′ 53.4884″[1] |
| Apparent magnitude (V) | 6.05[2] |
| Characteristics | |
| Spectral type | K0 III[3] |
| B−V color index | 0.951±0.001[2] |
| Astrometry | |
| Radial velocity (Rv) | −31.34±0.16[1] km/s |
| Proper motion (μ) | RA: +15.621[1] mas/yr Dec.: +28.509[1] mas/yr |
| Parallax (π) | 16.9727 ± 0.0716[1] mas |
| Distance | 192.2 ± 0.8 ly (58.9 ± 0.2 pc) |
| Absolute magnitude (MV) | 2.19[2] |
| Details[4] | |
| Mass | 1.55±0.22 M☉ |
| Radius | 5.07±0.19 R☉ |
| Luminosity | 13.8+1.0 −0.9 L☉ |
| Surface gravity (log g) | 3.22 cgs |
| Temperature | 4,931 K |
| Metallicity [Fe/H] | 0.14 dex |
| Rotational velocity (v sin i) | 1.8 km/s |
| Age | 2.5+0.6 −0.4 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
24 Camelopardalis is a star in the northern circumpolar constellation of Camelopardalis,[5] located 192 light years away from the Sun.[1] It is near the lower limit of visibility to the naked eye, appearing as a dim, orange-hued star with an apparent visual magnitude of 6.05.[2] This object is moving closer to the Earth with a heliocentric radial velocity of −31 km/s.[1]
The stellar classification of this star is K0 III,[3] matching an evolved giant star that has exhausted the hydrogen at its core and expanded. It is 2.5 billion years old with 1.6 times the mass of the Sun and has grown to five times the Sun's radius. The star is radiating 14 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,931 K.[4]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 2.3 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters 38 (5): 331, doi:10.1134/S1063773712050015, Bibcode: 2012AstL...38..331A.
- ↑ 3.0 3.1 Yoss, Kenneth M. (November 1961), "Spectral and Luminosity Classifications and Measurements of the Strength of Cyanogen Absorption for Late-Type Stars from Objective-Prism Spectra.", Astrophysical Journal 134: 809, doi:10.1086/147209, Bibcode: 1961ApJ...134..809Y
- ↑ 4.0 4.1 Brewer, John M. et al. (2016), "Spectral Properties of Cool Stars: Extended Abundance Analysis of 1,617 Planet-Search Stars", The Astrophysical Journal Supplement Series 225 (2): 32, doi:10.3847/0067-0049/225/2/32, Bibcode: 2016ApJS..225...32B.
- ↑ 5.0 5.1 "24 Cam". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=24+Cam.
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