13 Cancri

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13 Cancri
Cancer constellation map.svg
Red circle.svg
Location of 13 Cancri (circled)
Observation data
Epoch J2000.0        Equinox J2000.0
Constellation Cancer
Right ascension 08h 10m 13.107s [1]
Declination +25° 50 40.13 [1]
Apparent magnitude  (V)+6.41 [2]
Characteristics
Evolutionary stage giant
Spectral type K3 III [3]
Astrometry
Radial velocity (Rv)4.96 [1]  km/s
Proper motion (μ)RA: −14.708 [1]   mas/yr
Dec.: −31.065 [1]   mas/yr
Parallax (π)3.3713 ± 0.0435  mas
Distance 970 ± 10  ly
(297 ± 4  pc)
Absolute magnitude  (MV)-0.56 [4]
Details
Radius 36 [1]   R
Luminosity 387 [1]   L
Temperature 4,266 [1]   K
Other designations
13  Cancri, HD  67690, BD+26°1728, HIP  40007, SAO  79991, GC  11082, CCDM  08102+2551
Database references
SIMBAD data

13 Cancri (abbreviated to 13 Cnc) is a K-type giant star in the constellation Cancer. It has an apparent magnitude of +6.41 and is approximately 970 light years from Earth.

Its designation is unusual as it is one of a very few stars which have a Bayer designation and are not in the Bright Star Catalog, [5] although the designation ψ1 Cancri is rarely used. [6] It is one of the few stars with a Flamsteed designation that are not listed in the Bright Star Catalogue. [7] [8]

See also

Related Research Articles

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References

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  2. Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27. Bibcode:2000A&A...355L..27H.
  3. Adams, Walter S.; Joy, Alfred H.; Humason, Milton L.; Brayton, Ada Margaret (1935). "The Spectroscopic Absolute Magnitudes and Parallaxes of 4179 Stars". Astrophysical Journal. 81: 187. Bibcode:1935ApJ....81..187A. doi: 10.1086/143628 .
  4. 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. Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
  6. Kostjuk, N. D. (2004). "VizieR Online Data Catalog: HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index (Kostjuk, 2002)". VizieR On-line Data Catalog: IV/27A. Originally Published in: Institute of Astronomy of Russian Academy of Sciences (2002). 4027. Bibcode:2004yCat.4027....0K.
  7. Bidelman, W. P. (1990). "Flamsteed stars not contained in the Yale "Catalogue of Bright Stars"". Bulletin d'Information du Centre de Données Stellaires. 38: 13. Bibcode:1990BICDS..38...13B.
  8. Wagman, M. (1987). "Flamsteed's Missing Stars". Journal for the History of Astronomy. 18 (3): 209–223. Bibcode:1987JHA....18..209W. doi:10.1177/002182868701800305. S2CID   118445625.