83 Cancri

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83 Cancri
Observation data
Epoch J2000        Equinox J2000
Constellation Cancer
Right ascension 09h 18m 58.82772s [1]
Declination +17° 42′ 19.2744″ [1]
Apparent magnitude  (V)6.61 [2]
Characteristics
Evolutionary stage main sequence
Spectral type F4V [2] + WD [3]
B−V color index 0.487±0.030 [2]
Variable type constant [2]
Astrometry
Radial velocity (Rv)−14.8±0.4 [2]  km/s
Proper motion (μ)RA: −135.130 [1]   mas/yr
Dec.: −105.267 [1]   mas/yr
Parallax (π)24.5641 ± 0.0966  mas [1]
Distance 132.8 ± 0.5  ly
(40.7 ± 0.2  pc)
Absolute magnitude  (MV)3.57 [2]
Orbit [3]
Period (P)32±2.5 d
Eccentricity (e)0.6±0.2
Inclination (i)94±6°
Longitude of the node (Ω)148±5°
Periastron epoch (T)1976.0±3.5
Argument of periastron (ω)
(secondary)		351±42°
Details
83 Cnc A
Mass 1.13 [4]   M☉
Radius 1.53+0.02
−0.05 [1]   R☉
Luminosity 3.135±0.015 [1]   L☉
Surface gravity (log g)3.99 [4]   cgs
Temperature 6,218+96
−53 [1]   K
Metallicity [Fe/H]−0.26±0.02 [2]   dex
Age 3.1 [4]   Gyr
83 Cnc B
Mass 1.3 [3]   M☉
Other designations
83 Cnc, BD+18°2165, FK5  350, HD  80218, HIP  45699, SAO  98488 [5]
Database references
SIMBAD data

83 Cancri is an astrometric binary [6] [7] star system in the northern constellation of Cancer, positioned near the constellation border with Leo. It is a challenge to view with the naked eye, having an apparent visual magnitude of 6.61. [2] Despite having a Flamsteed designation, the system was too faint to be included in the Bright Star Catalogue . [8] It is located at a distance of 133  light years from the Sun, based on parallax, [1] but is drifting closer with a radial velocity of −15 km/s. [2] 83 Cancri has a relatively high proper motion, traversing the celestial sphere at an angular rate of 0.185″ per annum. [9]

The pair have an orbital period of around 32 days and an eccentricity of about 0.6. [3] The visible member of this system, designated component A, is an F-type main-sequence star with a stellar classification of F4V. [2] Its atmosphere is enhanced with s-process elements, particularly strontium and yttrium, which is attributed to mass transfer from the companion while the latter was on the asymptotic giant branch. [10] The primary is 3.1 [4]  billion years old with 1.1 [4] times the mass of the Sun and 1.5 [1] times the Sun's radius. It is radiating 3.1 [1] times the luminosity of the Sun from its photosphere at an effective temperature of 6,218 K. [1] The unseen secondary companion is most likely a high mass white dwarf, having around 1.3 times the Sun's mass. [3]

Related Research Articles

23 Andromedae, abbreviated 23 And, is a presumed single star in the constellation Andromeda, although it has been a suspected spectroscopic binary. 23 Andromedae is the Flamsteed designation. Its apparent visual magnitude is 5.71, which indicates it is dimly visible to the naked eye under good viewing conditions. The distance to 23 And, as determined from its annual parallax shift of 26.8 mas, is 121.6 light years. The star is moving further from the Earth with a heliocentric radial velocity of −27 km/s. It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.191″ per year.

Xi Aurigae, Latinized from ξ Aurigae, is the Bayer designation for a single, white-hued star in the northern constellation of Auriga. This star was once considered part of the constellation of Camelopardalis and held the Flamsteed designation 32 Camelopardalis. It is visible to the naked eye with an apparent visual magnitude of +5.0. The measured annual parallax shift of this star is 13.37 ± 0.17 mas, which corresponds to a physical distance of 244 light-years with a 3 light-year margin of error. At that distance, the visual magnitude of the star is diminished by an extinction of 0.108 due to interstellar dust.

39 Aurigae is a single star in the constellation of Auriga. The designation is from the star catalogue of English astronomer John Flamsteed, first published in 1712. The star is just barely visible to the naked eye, having an apparent visual magnitude of 5.90. Based upon an annual parallax shift of 20.11 mas as seen from Earth, it is located 112 light years away. 5 Andromedae is moving further from the Sun with a radial velocity of +34 km/s. It has a relatively high proper motion, advancing across the celestial sphere at the rate of 0.151 arc seconds per year.

Omicron1 Cancri, Latinised from ο1 Cancri, is a solitary, white-hued star in the zodiac constellation of Cancer. It is visible to the naked eye with an apparent visual magnitude of +5.20. Based upon an annual parallax shift of 21.87 mas as seen from Earth, this star is located around 149 light-years from the Sun. It most likely forms a co-moving pair with Omicron2 Cancri.

<span class="mw-page-title-main">82 Cancri</span> Star in the constellation Cancer

82 Cancri is a solitary, orange-hued star in the zodiac constellation of Cancer. It has the Bayer designation Pi2 Cancri, which is Latinized from π2 Cancri; 82 Cancri is the star's Flamsteed designation. The star lies just a degree to the south of the ecliptic. With an apparent visual magnitude of +5.33, it is dimly visible to the naked eye on a dark night. This star is located at a distance of approximately 540 light years from the Sun based on parallax. At that range, the visual magnitude is diminished by an extinction of 0.10 magnitudes due to interstellar dust. It is drifting further away with a radial velocity of +27 km/s.

Sigma1 Cancri, Latinized from σ1 Cancri, is a solitary, white-hued star in the zodiac constellation of Cancer. It is faintly visible to the naked eye, with an apparent visual magnitude of +5.68. Based upon an annual parallax shift of 15.51 mas as seen from Earth, this star is located around 210 light years from the Sun.

Sigma2 Cancri, Latinized from σ2 Cancri, is the Bayer designation for a solitary, white-hued star in the constellation Cancer. It is faintly visible to the naked eye, with an apparent visual magnitude of +5.44. Based upon an annual parallax shift of 16.79 mas as seen from Earth, this star is located around 194 light years from the Sun.

<span class="mw-page-title-main">49 Cancri</span> Star in the constellation Cancer

49 Cancri is a single star in the zodiac constellation of Cancer, located 501 light years away from the Sun. It has the Bayer designation b Cancri; 49 Cancri is the Flamsteed designation. It is visible to the naked eye as a faint star with an apparent visual magnitude of about 5.6. It is moving away from the Earth with a heliocentric radial velocity of +27.5 km/s.

25 Cancri is a common proper motion star system in the zodiac constellation of Cancer, located around 148 light-years away from the Sun. It has the Bayer designation d2 Cancri ; 25 Cancri is the Flamsteed designation. It is near the lower limit of visibility to the naked eye in good viewing conditions, appearing as a dim, yellow-white-hued star with a combined apparent visual magnitude of 6.11. The pair have a relatively high proper motion, traversing the celestial sphere at an angular rate of 0.245″ per year. It is moving further from the Earth with a heliocentric radial velocity of +38 km/s.

50 Cancri is a single star in the zodiac constellation of Cancer, located 183 light years away from the Sun. It has the Bayer designation A2 Cancri; 50 Cancri is the Flamsteed designation. It is faintly visible to the naked eye as a white-hued star with an apparent visual magnitude of 5.89. The star is moving away from the Earth with a heliocentric radial velocity of 23 km/s, having come to within 118 light-years some 1.2 million years ago.

1 Cancri is a single star in the zodiac constellation of Cancer, positioned near the border with Gemini 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 an apparent visual magnitude of 5.97. The object is moving further from the Earth with a heliocentric radial velocity of +14 km/s.

8 Cancri is a single, white-hued star in the zodiac constellation of Cancer. It has an apparent visual magnitude of +5.14, which indicates it is faintly visible to the naked eye under suitable viewing conditions. The distance to this star, as determined from its annual parallax shift of 15.20 mas, is around 215 light years. A radial velocity of +21 km/s indicates it is moving away from the Sun.

61 Cancri is the Flamsteed designation for a visual binary star system in the northern constellation Cancer. The pair have a combined apparent magnitude of 6.25, which means 61 Cancri is faintly visible to the naked eye. Based upon parallax measurements, the system is approximately 181 light years away from Earth.

HD 164427 is a star with a likely red dwarf companion in the southern constellation of Pavo. It has an apparent visual magnitude of 6.88, placing it just below the nominal limit for visibility with the typical naked eye. The annual parallax shift of 23.5 mas yields a distance estimate of 139 light-years. It is moving further from the Earth with a heliocentric radial velocity of +3.4 km/s.

HD 165259, also known as HR 6751 is a triple star system located in the southern circumpolar constellation of Apus. It has an apparent magnitude of 5.86, making it faintly visible to the naked eye Parallax measurements place the system at a distance of 138 light years, and it is currently receding with a heliocentric radial velocity of 13.1 km/s.

Tau1 Hydrae is a triple star system in the equatorial constellation of Hydra. Based upon the annual parallax shift of the two visible components as seen from Earth, they are located about 18 parsecs (59 ly) from the Sun. The system has a combined apparent visual magnitude of +4.59, which is bright enough to be visible to the naked eye at night.

ο Pegasi, Latinized as Omicron Pegasi, is a suspected astrometric binary star system in the northern constellation of Pegasus. It is white in hue and visible to the naked eye as a faint point of light with an apparent visual magnitude of +4.80. The distance to this system is approximately 290 light years based on parallax, and it is drifting further away from the Sun with a radial velocity of +8.5 km/s.

<span class="mw-page-title-main">Rho Pegasi</span> Star in the constellation Pegasus

Rho Pegasi, Latinized from ρ Pegasi, is a star in the northern constellation of Pegasus, near the southern constellation boundary with Pisces. This is a probable astrometric binary system, as determined by changes to the proper motion of the visible component. It has a white hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.90. The system is located at a distance of approximately 274 light years from the Sun based on parallax, but it is drifting closer with a radial velocity of −10.6 km/s.

<span class="mw-page-title-main">32 Persei</span> Star in the constellation Perseus

32 Persei is a single star located 149 light years away from the Sun in the northern constellation of Perseus. It has the Bayer designation of l Persei, while 32 Persei is the Flamsteed designation. This object is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 4.96. It is moving closer to the Earth with a heliocentric radial velocity of −9 km/s, and is a member of the Sirius supercluster: a stream of stars that share a common motion through space.

33 Pegasi is the Flamsteed designation for a visual binary star in the northern constellation of Pegasus. It has an apparent visual magnitude of 6.2, placing it near the limit of naked eye visibility. Measurements show an annual parallax shift of 0.0298125″, which is equivalent to a distance of 109 ly (33 pc) from the Sun. It is drifting further away with a radial velocity of 24 km/s.

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 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.
  2. 1 2 3 4 5 6 7 8 9 10 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.
  3. 1 2 3 4 5 Goncharov, G. A.; Kiyaeva, O. V. (April 2002), "Astrometric Orbits from a Direct Combination of Ground-Based Catalogs with the Hipparcos Catalog", Astronomy Letters, 28 (4): 261–271, Bibcode:2002AstL...28..261G, doi:10.1134/1.1467262, S2CID   121692881.
  4. 1 2 3 4 5 David, Trevor J.; Hillenbrand, Lynne A. (2015), "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets", The Astrophysical Journal, 804 (2): 146, arXiv: 1501.03154 , Bibcode:2015ApJ...804..146D, doi:10.1088/0004-637X/804/2/146, S2CID   33401607.
  5. ↑ "83 Cnc". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 19 August 2017.
  6. ↑ Tokovinin, Andrei (April 2014), "From Binaries to Multiples. II. Hierarchical Multiplicity of F and G Dwarfs", The Astronomical Journal, 147 (4): 14, arXiv: 1401.6827 , Bibcode:2014AJ....147...87T, doi:10.1088/0004-6256/147/4/87, S2CID   56066740, 87.
  7. ↑ 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.
  8. ↑ Bidelman, W. P. (December 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.
  9. ↑ Lépine, Sébastien; Shara, Michael M. (March 2005), "A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog)", The Astronomical Journal, 129 (3): 1483–1522, arXiv: astro-ph/0412070 , Bibcode:2005AJ....129.1483L, doi:10.1086/427854, S2CID   2603568.
  10. ↑ Reddy, Bacham E.; et al. (March 2003), "The chemical compositions of Galactic disc F and G dwarfs", Monthly Notices of the Royal Astronomical Society, 340 (1): 304–340, arXiv: astro-ph/0211551 , Bibcode:2003MNRAS.340..304R, doi: 10.1046/j.1365-8711.2003.06305.x , S2CID   14388692.
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