Movatterモバイル変換


[0]ホーム

URL:


Jump to content
WikipediaThe Free Encyclopedia
Search

1 Cancri

From Wikipedia, the free encyclopedia
K-type giant star in the constellation Cancer
1 Cancri
Observation data
Epoch J2000      Equinox J2000
ConstellationCancer
Right ascension07h 56m 59.45262s[1]
Declination+15° 47′ 25.0019″[1]
Apparent magnitude (V)5.97[2]
Characteristics
Spectral typeK3− III[3]
B−Vcolor index1.285±0.007[4]
Astrometry
Radial velocity (Rv)+13.55±0.12[1] km/s
Proper motion (μ)RA: −26.731[1]mas/yr
Dec.: −42.7591[1]mas/yr
Parallax (π)6.9810±0.0694 mas[1]
Distance467 ± 5 ly
(143 ± 1 pc)
Absolute magnitude (MV)0.03[4]
Details
Mass1.1[5] M
Radius18.7[6] R
Luminosity199[1] L
Surface gravity (log g)2.03[7] cgs
Temperature4,231[7] K
Metallicity[Fe/H]−0.01[7] dex
Other designations
1 Cnc,BD+16°1590,FK5 1208,HD 64960,HIP 38848,HR 3095,SAO 97399[8]
Database references
SIMBADdata

1 Cancri is a single[2]star in thezodiacconstellation ofCancer, positioned near the border withGemini at a distance of around 467 light years from the Sun. It is barely visible to the naked eye as a dim, orange-hued star with anapparent visual magnitude of 5.97. The object is moving further from the Earth with a heliocentricradial velocity of +14 km/s.

This is anevolvedgiant star with astellar classification of K3− III,[3] having exhausted the hydrogen at its core and expanded. It is specified as a spectral standard for that type.[3] Theangular diameter of the star measured from alunar occultation is2.1±0.6 mas,[9] which, at its estimated distance, equates to a physical radius of about 19 times theradius of the Sun. It is radiating 199 times theSun's luminosity from its enlargedphotosphere at aneffective temperature of4,231 K.

References

[edit]
  1. ^abcdefgVallenari, 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.
  2. ^abEggleton, 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.
  3. ^abcKeenan, Philip C.; McNeil, Raymond C. (1989), "The Perkins catalog of revised MK types for the cooler stars",Astrophysical Journal Supplement Series,71: 245,Bibcode:1989ApJS...71..245K,doi:10.1086/191373.
  4. ^abAnderson, 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. ^Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevič, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; de Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (August 2019), "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18",Astronomy & Astrophysics,628: A94,arXiv:1904.11302,Bibcode:2019A&A...628A..94A,doi:10.1051/0004-6361/201935765,ISSN 0004-6361.
  6. ^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.
  7. ^abcSprague, Dani; et al. (8 March 2022), "APOGEE Net: An Expanded Spectral Model of Both Low-mass and High-mass Stars",The Astronomical Journal,163 (4): 152,arXiv:2201.03661,Bibcode:2022AJ....163..152S,doi:10.3847/1538-3881/ac4de7,eISSN 1538-3881,ISSN 0004-6256.
  8. ^"1 Cnc".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved2019-02-22.
  9. ^Richichi, A.; et al. (February 2005), "CHARM2: An updated Catalog of High Angular Resolution Measurements",Astronomy and Astrophysics,431 (2):773–777,Bibcode:2005A&A...431..773R,doi:10.1051/0004-6361:20042039
Stars
Bayer
Flamsteed
Variable
HD
Other
Exoplanets
Star clusters
Nebulae
Galaxies
NGC
Other
Galaxy clusters
Portals:
Retrieved from "https://en.wikipedia.org/w/index.php?title=1_Cancri&oldid=1319633397"
Categories:
Hidden categories:

[8]ページ先頭

©2009-2025 Movatter.jp