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Beta Cancri information


β Cancri
β Cancri is the bottom right star in the "crab"
Observation data
Epoch J2000      Equinox J2000
Constellation Cancer
Right ascension 08h 16m 30.9206s[1]
Declination +09° 11′ 07.961″[1]
Apparent magnitude (V) 3.50 - 3.58[2]
Characteristics
Spectral type K4III Ba1[3]
U−B color index +1.77[4]
B−V color index +1.48[4]
Variable type Suspected[2]
Astrometry
Radial velocity (Rv)22.94[5] km/s
Proper motion (μ) RA: −45.679 mas/yr[6]
Dec.: −49.505 mas/yr[6]
Parallax (π)10.1026 ± 0.3141 mas[6]
Distance323+10
−8.5
 ly
(99.2+3
−2.6
 pc)[7]
Absolute magnitude (MV)−1.218[8]
Details
Mass1.75±0.11[9] M
Radius51.7±1[9] R
Luminosity677±41[9] L
Surface gravity (log g)1.9[9] cgs
Temperature4,094±53[9] K
Metallicity [Fe/H]−0.29±0.06[10] dex
Rotational velocity (v sin i)3.7±0.8[10] km/s
Age1.49±0.22[9] Gyr
Other designations
Tarf, β Cancri, 17 Cancri, HR 3249, HD 69267, BD+09°1917, FK5 312, HIP 40526, SAO 116569, GC 11254, ADS 6704, CCDM 08165+0911, WDS J08165+0911A.[11]
Database references
SIMBADdata

Beta Cancri (β Cancri, abbreviated Beta Cnc, β Cnc), also named Tarf /ˈtɑːrf/,[12] is the brightest star in the zodiacal constellation of Cancer. It has an apparent visual magnitude of +3.5[2] and an absolute magnitude of −1.2.[8] Based on parallax measurements obtained by the Gaia spacecraft, it is approximately 323 light-years distant from the Sun.[6] An exoplanet, designated Beta Cancri b, is believed to be orbiting the star.[10]

Beta Cancri has a companion listed and together they are designated WDS J08165+0911. As the primary, Beta Cancri bears the designation WDS J08165+0911A.[11] The companion is designated WDS J08165+0911B.[13]

  1. ^ a b Cite error: The named reference hipparcos was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference gcvs was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference lu was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference eggen was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference famaey was invoked but never defined (see the help page).
  6. ^ a b c 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.
  7. ^ Cite error: The named reference b-j was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference cassatella was invoked but never defined (see the help page).
  9. ^ a b c d e f Cite error: The named reference baines2018 was invoked but never defined (see the help page).
  10. ^ a b c Cite error: The named reference Lee2014 was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference IAU-LSN was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference SIMBADB was invoked but never defined (see the help page).

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Beta Cancri

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Beta CancriCancri, abbreviated Beta Cnc, β Cnc), also named Tarf /ˈtɑːrf/, is the brightest star in the zodiacal constellation of Cancer. It has an...

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Beta Cancri b

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Beta Cancri b is a gas giant exoplanet that orbits the K-type giant Beta Cancri. Its mass is 7.8 Jupiters, it takes 1.7 years to complete one orbit of...

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radius is predicted to be 2.6 km. Highest stellar luminosity Beta Cancri b Beta Cancri 794 L☉ This is the most luminous star to host a planet that is...

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ʽAqrab the Scorpion عقرب عَقْرَب Beta Scorpii Acubens ʼaz-Zubānā the Claw / Dart / Sting الزبانى الْزُّبَانَى Alpha Cancri Adhafera aḍ-Ḍafiyrah the Braid...

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List of exoplanets discovered in 2014

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S2CID 118512899 Lee, B.-C.; et al. (2014). "Planetary Companions in K giants β Cancri, μ Leonis, and β Ursae Minoris". Astronomy & Astrophysics. 566: 7. arXiv:1405...

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Debris disk

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imaging (HR 8799), are known to also host debris disks. The nearby star 55 Cancri, a system that is also known to contain five planets, also was reported...

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Ursa Minor

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; Hatzes, A.P.; Kim, K.-M. (2014). "Planetary Companions in K giants β Cancri, μ Leonis, and β Ursae Minoris". Astronomy and Astrophysics. 566: 7. arXiv:1405...

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List of hottest exoplanets

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et al. (November 2022). "Revisiting the Iconic Spitzer Phase Curve of 55 Cancri e: Hotter Dayside, Cooler Nightside, and Smaller Phase Offset". The Astronomical...

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Magnetosphere

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(2021), "The search for radio emission from the exoplanetary systems 55 Cancri, υ Andromedae, and τ Boötis using LOFAR beam-formed observations", Astronomy...

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2024 in science

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ligands and more, and how they interact. Atmospheric gases surrounding 55 Cancri e, a hot rocky exoplanet 41 light-years from Earth, are detected by researchers...

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Canis Minor

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Nánhé was also associated with a gate or sentry. Along with Zeta and 8 Cancri, 6 Canis Minoris and 11 Canis Minoris formed the asterism Shuiwei, which...

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Upsilon Andromedae

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together with the planet of Tau Boötis and the innermost planet of 55 Cancri. The discovery was made by Geoffrey Marcy and R. Paul Butler, both astronomers...

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List of exoplanet firsts

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First planet discovered in a multiple main-sequence star system 55 Cancri b 55 Cancri 1996 55 Cnc has a distant red dwarf companion. The planet around Gamma...

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Astronomical naming conventions

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(honoring the astronomer Nicolaus Copernicus) for the stars Mu Arae and 55 Cancri A, respectively. In July 2016, the IAU WGSN approved the name Cor Caroli...

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Stars named after people

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Arae honoring the writer Miguel de Cervantes Copernicus for the star 55 Cancri A honoring the astronomer Nicolaus Copernicus In 2016, the IAU organized...

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Subgiant

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Serpentis F8: 50 Andromedae, θ Draconis G0: η Boötis, ζ Herculis G2: μ2 Cancri G5: μ Herculis G8: β Aquilae K0: η Cephei K1: γ Cephei Later analysis showed...

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List of nearest stars by spectral type

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100 NEAREST STAR SYSTEMS". www.chara.gsu.edu. Retrieved 2024-01-05. "DX Cancri". simbad.u-strasbg.fr. Retrieved 2024-01-05. Henry, Todd J.; Ianna, Philip...

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SN 1054

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twenty-eight mansions sign Ghost (Delta Cancri), while in reality, it approached the star north-west of the asterism (Eta Cancri). The oldest and most detailed...

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Exoplanet orbital and physical parameters

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Kepler 10c. The next most massive known solid planets are half this mass: 55 Cancri e and Kepler-20b. Gas planets can have large solid cores. The Saturn-mass...

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Exoplanet

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to allow continents to exist. Large surface temperature variations on 55 Cancri e have been attributed to possible volcanic activity releasing large clouds...

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