17 Camelopardalis

17 Camelopardalis
Observation data
Epoch J2000      Equinox J2000
Constellation Camelopardalis
Right ascension 05h 30m 10.20325s[1]
Declination +63° 04′ 01.9891″[1]
Apparent magnitude (V) 5.44[2]
Characteristics
Spectral type M1IIIa[3]
B−V color index 1.704±0.004[4]
Variable type suspected[2]
Astrometry
Radial velocity (Rv)−20.89±0.23[1] km/s
Proper motion (μ) RA: −5.602[1] mas/yr
Dec.: −4.751[1] mas/yr
Parallax (π)3.0424 ± 0.1380 mas[1]
Distance1,070 ± 50 ly
(330 ± 10 pc)
Absolute magnitude (MV)−1.85[4]
Details
Mass0.64[5] M☉
Radius100[6] R☉
Luminosity3,230[5] L☉
Surface gravity (log g)0.15[5] cgs
Temperature3,852[6] K
Other designations
17 Cam, NSV 2003, BD+62°759, FK5 203, HD 35583, HIP 25769, HR 1802, SAO 13518[7]
Database references
SIMBADdata

17 Camelopardalis is a single[8] star in the northern circumpolar constellation of Camelopardalis, located roughly 960 light years away from the Sun. It is visible to the naked eye as a faint, red-hued star with an apparent visual magnitude of 5.44. This object is moving closer to the Earth with a heliocentric radial velocity of −20 km/s.

This is an ageing red giant star, currently on the asymptotic giant branch,[9] with a stellar classification of M1IIIa.[3] It is a suspected small amplitude variable.[2] The star has expanded to 100 times the Sun's radius and is radiating 3,230 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 3,852 K.

  1. ^ a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  2. ^ a b c Samus, N. N.; Durlevich, O. V.; et al. (2004). "VizieR Online Data Catalog: Combined General Catalogue of Variable Stars (Samus+ 2004)". VizieR On-line Data Catalog: II/250. Originally Published in: 2004yCat.2250....0S. 2250. Bibcode:2004yCat.2250....0S.
  3. ^ a b Kwok, Sun; Volk, Kevin; Bidelman, William P. (1997). "Classification and Identification of IRAS Sources with Low-Resolution Spectra". The Astrophysical Journal Supplement Series. 112 (2): 557. Bibcode:1997ApJS..112..557K. doi:10.1086/313038.
  4. ^ a b Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644.
  5. ^ a b c Stassun, Keivan G.; et al. (September 2018). "The TESS Input Catalog and Candidate Target List". The Astronomical Journal. 156 (3): 102. arXiv:1706.00495. Bibcode:2018AJ....156..102S. doi:10.3847/1538-3881/aad050. ISSN 0004-6256.
  6. ^ a b Stassun, Keivan G.; et al. (9 September 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. eISSN 1538-3881.
  7. ^ "17 Cam". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-04-16.
  8. ^ 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.
  9. ^ Eggen, Olin J. (July 1992). "Asymptotic giant branch stars near the sun". Astronomical Journal. 104 (1): 275–313. Bibcode:1992AJ....104..275E. doi:10.1086/116239.