| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 05h 23m 27.84195s [1] |
| Declination | +57° 32′ 39.8364″ [1] |
| Apparent magnitude (V) | 5.28 [2] |
| Characteristics | |
| Evolutionary stage | main sequence [3] |
| Spectral type | A0Vn [4] |
| U−B color index | −0.07 [2] |
| B−V color index | −0.03 [2] |
| Astrometry | |
| Radial velocity (Rv) | 12.0±3.7 [5] km/s |
| Proper motion (μ) |
RA: +15.396
[1]
mas/
yr Dec.: −54.447 [1] mas/ yr |
| Parallax (π) | 9.3655 ± 0.1506 mas [1] |
| Distance | 348 ± 6
ly (107 ± 2 pc) |
| Absolute magnitude (MV) | 0.18 [6] |
| Details | |
| Mass | 2.80±0.04 [3] M☉ |
| Radius | 3.26 [7] R☉ |
| Luminosity | 96.6+7.2 −6.6 [3] L☉ |
| Temperature | 9,748+92 −87 [3] K |
| Rotational velocity (v sin i) | 217 [8] km/s |
| Age | 400 [7] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
16 Camelopardalis is a single [10] star in the northern circumpolar constellation Camelopardalis, [9] located 348 light years away from the Sun as determined from parallax measurements. [1] It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 5.28. [2] This object is moving further from the Earth with a heliocentric radial velocity of around 12 km/s. [5]
This is an A-type main-sequence star with a stellar classification of A0 Vn, [4] where the 'n' notation indicates "nebulous" lines due to rapid rotation. In the past it was misidentified as a Lambda Boötis star. [11] It is around 400 [7] million years old and is spinning with a projected rotational velocity of 217 km/s. [8] The star has 2.8 [3] times the mass of the Sun and 3.3 [7] times the Sun's radius. It is radiating 97 [3] times the Sun's luminosity from its photosphere at an effective temperature of 9,748 K. [3]
An infrared excess indicates it has a dusty debris disk with a mean temperature of 120 K orbiting at a distance of 52 AU from the star. This disk has a combined mass equal to 2.1% the mass of the Earth. [7]
References
- ^ a b c d e f Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv: 1804.09365. Bibcode: 2018A&A...616A...1G. doi: 10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b c d Oja, T. (April 1983), "UBV photometry of FK4 and FK4 supplement stars", Astronomy and Astrophysics Supplement Series, 52: 131–134, Bibcode: 1983A&AS...52..131O
- ^ a b c d e f g Zorec, J.; Royer, F. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics, 537: A120, arXiv: 1201.2052, Bibcode: 2012A&A...537A.120Z, doi: 10.1051/0004-6361/201117691, S2CID 55586789.
- ^ a b Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode: 1969AJ.....74..375C, doi: 10.1086/110819
- ^ a b Kharchenko, N. V.; et al. (2007), "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ˜55000 stars and mean radial velocities of 516 Galactic open clusters and associations", Astronomische Nachrichten, 328 (9): 889–896, arXiv: 0705.0878, Bibcode: 2007AN....328..889K, doi: 10.1002/asna.200710776, S2CID 119323941
- ^ Huang, W.; et al. (2012), "A catalogue of Paschen-line profiles in standard stars", Astronomy & Astrophysics, 547: A62, arXiv: 1210.7893, Bibcode: 2012A&A...547A..62H, doi: 10.1051/0004-6361/201219804, S2CID 119286159.
- ^ a b c d e Rhee, Joseph H.; et al. (May 2007), "Characterization of Dusty Debris Disks: The IRAS and Hipparcos Catalogs", The Astrophysical Journal, 660 (2): 1556–1571, arXiv: astro-ph/0609555, Bibcode: 2007ApJ...660.1556R, doi: 10.1086/509912, S2CID 11879505
- ^ a b Royer, F.; Zorec, J.; Gómez, A. E. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv: astro-ph/0610785, Bibcode: 2007A&A...463..671R, doi: 10.1051/0004-6361:20065224, S2CID 18475298
- ^ a b "16 Cam". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-04-16.
- ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv: 0806.2878, Bibcode: 2008MNRAS.389..869E, doi: 10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
- ^ Gerbaldi, M.; Faraggiana, R.; Lai, O. (December 2003), "The heterogeneous class of lambda Bootis stars", Astronomy and Astrophysics, 412 (2): 447–464, Bibcode: 2003A&A...412..447G, doi: 10.1051/0004-6361:20031472.
