Star in the constellation Camelopardalis
17 Camelopardalis Observation dataEpoch 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 Evolutionary stage AGB [ 3] Spectral type M1IIIa[ 4] B−Vcolor index 1.704± 0.004[ 5] 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] Distance 1,070 ± 50 ly (330 ± 10 pc ) Absolute magnitude (MV )−1.85[ 5] Details Mass 0.64[ 6] M ☉ Radius 100[ 7] R ☉ Luminosity 3,230[ 6] L ☉ Surface gravity (log g )0.15[ 6] cgs Temperature 3,852[ 7] K Other designations 17 Cam ,NSV 2003 ,BD +62°759 ,FK5 203 ,HD 35583 ,HIP 25769 ,HR 1802 ,SAO 13518[ 8] Database references SIMBAD data
17 Camelopardalis is a single[ 9] star in the northerncircumpolar constellation ofCamelopardalis , located roughly 960 light years away from the Sun. It is visible to the naked eye as a faint, red-hued star with anapparent visual magnitude of 5.44. This object is moving closer to the Earth with a heliocentricradial velocity of −20 km/s.
This is an ageingred giant star, currently on theasymptotic giant branch ,[ 3] with astellar classification of M1IIIa.[ 4] It is a suspected small amplitudevariable .[ 2] The star has expanded to 100 times theSun's radius and is radiating 3,230 times theluminosity of the Sun from its enlargedphotosphere at aneffective temperature of 3,852 K .
^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 atVizieR .^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 . ^a b 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 . ^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 . ^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 . ^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 . ^a b Stassun, Keivan G.; et al. (9 September 2019)."The RevisedTESS 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 . ^ "17 Cam" .SIMBAD .Centre de données astronomiques de Strasbourg . Retrieved2019-04-16 .^ 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 .