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Beta Eridani information


β Eridani
Location of β Eridani (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Eridanus
Right ascension 05h 07m 50.98549s[1]
Declination −05° 05′ 11.2055″[1]
Apparent magnitude (V) 2.796[2]
Characteristics
Spectral type A3 III var[3]
U−B color index +0.124[2]
B−V color index +0.110[2]
R−I color index +0.08[4]
Astrometry
Radial velocity (Rv)–3.6[5] km/s
Proper motion (μ) RA: -82.82[1] mas/yr
Dec.: -75.39[1] mas/yr
Parallax (π)36.2456 ± 0.3575 mas[6]
Distance90.0 ± 0.9 ly
(27.6 ± 0.3 pc)
Absolute magnitude (MV)+0.59[7]
Details
Mass2.0[8] M
Radius2.4[8] R
Luminosity25[8] L
Surface gravity (log g)3.58[5] cgs
Temperature8,360,[9] 8,104[5] K
Metallicity [Fe/H]–0.4[10] dex
Rotational velocity (v sin i)196[3] km/s
Other designations
Cursa/Kursa,[11] Dhalim,[12] β Eri, Beta Eridani, Beta Eri, 67 Eridani, 67 Eri, BD−05 1162, CCDM J05079-0506A, FK5 188, GC 6274, GJ 9175, HD 33111, HIP 23875, HR 1666, IDS 05030-0513 A, PPM 187729, SAO 131794, WDS 05078-0505A.[13]
Database references
SIMBADdata

Beta Eridani (β Eridani, abbreviated Beta Eri, β Eri), formally named Cursa /ˈkɜːrsə/,[14] is the second-brightest star in the constellation of Eridanus, located in the northeast end of this constellation near the shared border with Orion. The apparent visual magnitude of this star is 2.796,[2] so it can be viewed with the naked eye in dark skies. Parallax measurements yield an estimated distance of about 89 light-years (27 parsecs) from the Earth.[1]

  1. ^ a b c d e Cite error: The named reference aaa474_2_653 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference saaoc8_59 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference aaa393_897 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference bsc2 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference aj125_4_1980 was invoked but never defined (see the help page).
  6. ^ Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  7. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference aass85_3_1015 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference kaler was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference aaa388_978 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference moore2006 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference allen1963 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  14. ^ "IAU Catalog of Star Names". Retrieved 28 July 2016.

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Beta Eridani

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Beta Eridani (β Eridani, abbreviated Beta Eri, β Eri), formally named Cursa /ˈkɜːrsə/, is the second-brightest star in the constellation of Eridanus,...

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Rigel

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Rigel is his knee or (as its name suggests) foot; with the nearby star Beta Eridani marking Orion's footstool. Rigel is presumably the star known as "Aurvandil's...

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Sirius

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along with other scattered stars such as Beta Aurigae, Alpha Coronae Borealis, Beta Crateris, Beta Eridani and Beta Serpentis. This would be one of three...

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List of Arabic star names

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River عرجة النهر Tau² Eridani Ankaa al-ʽAnqā' Anqa, Phoenix العنقاء Alpha Phoenicis Arkab al-ʽArqūb the Hamstring العرقوب Beta Sagittarii Arneb al-Arnab...

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List of brightest natural objects in the sky

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system 2.79 2.72 Beta Eridani Star 2.79 2.76 Cor Caroli Binary star system 2.79 2.78 Delta Crucis Star 2.79 Epsilon Virginis Star 2.79 Beta Hydri Star 2.800...

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Lambda Eridani variable

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Eridani variables, only GCAS for Gamma Cassiopeiae variables and BE for non-GCAS Be star variables. λ Eridani itself is incorrectly listed as a Beta Cephei...

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List of nearest giant stars

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1991)". VizieR Online Data Catalog: V/50. Bibcode:1995yCat.5050....0H. "beta Cas". SIMBAD. Retrieved December 22, 2023. Che, X.; Monnier, J. D.; Zhao...

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51 Eridani

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A yellow-white main-sequence star of spectral type F0V, 51 Eridani is a member of the Beta Pictoris moving group and hence thought to be around 23 million...

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Kursa

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Kursa may refer to: Beta Eridani, a star Kursa, Iran, a village This disambiguation page lists articles associated with the title Kursa. If an internal...

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Beta Pictoris

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Beta Pictoris (abbreviated β Pictoris or β Pic) is the second brightest star in the constellation Pictor. It is located 63.4 light-years (19.4 pc) from...

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Beta Cephei variable

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Iota Herculis, 53 Piscium, Nu Eridani, Gamma Pegasi, HD 13745 (V354 Persei) and 53 Arietis had been found to exhibit both Beta Cephei and SPB variability...

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List of Star Trek regions of space

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Alpha/Beta border runs through the Solar System. The Star Trek Star Charts claim that the Beta Quadrant contains the core worlds Vulcan (40 Eridani), Andoria...

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Beta Pictoris moving group

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are visible to the naked eye are: Beta Pictoris Eta Telescopii 51 Eridani HD 203 HD 146624 HD 165189 HD 172555 Beta Trianguli Australis (potential member)...

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Mu Eridani

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Mu EridaniEridani) is a binary star system in the constellation Eridanus. It is visible to the naked eye with an apparent visual magnitude of 4.00...

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Lambda Eridani

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Lambda Eridani (λ Eri) is a star in the constellation Eridanus. It is visible to the naked eye on a dark night with an apparent visual magnitude of 4...

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Nu Eridani

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Nu Eridani (ν Eri) is a star in the constellation Eridanus. It is visible to the naked eye with an apparent visual magnitude of 3.93. The distance to...

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Solar analog

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Bibcode:2008ApJ...687.1264M. doi:10.1086/591785. S2CID 27151456. Epsilon Eridani at SIMBAD - Ids - Bibliography - Image. Tau Ceti at SIMBAD - Ids - Bibliography...

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Debris disk

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known as the "fabulous four": Vega, Beta Pictoris, Fomalhaut, and Epsilon Eridani. Subsequently, direct images of the Beta Pictoris disk showed irregularities...

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Terrestrial Planet Finder

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Cassiopeia 19 G3V 5 Beta Hydri Hydrus 24 G2IV 6 Delta Pavonis Pavo 20 G8V 7 Pi3 Orionis Orion 26 F6V 8 Gamma Leporis Lepus 29 F7V 9 Epsilon Eridani Eridanus 10...

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List of alien races in Marvel Comics

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rest in mountains, and possesses a 90:10, oxygen:methane atmosphere. The Eridani are a race of alien humanoids that were supposed to handle the waste management...

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AF Leporis

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studies have found that the planet has a fairly eccentric orbit. 51 Eridani Beta Pictoris Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data...

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Fornax

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its eastern and western points and Beta Fornacis marking the shallow southern apex. Originally designated 12 Eridani by John Flamsteed, Alpha Fornacis...

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Tau Orionis

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Jade Well, refers to an asterism consisting of τ Orionis, β Eridani, λ Eridani and ψ Eridani. Consequently, the Chinese name for τ Orionis itself is 玉井四...

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Search for extraterrestrial intelligence

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at Green Bank, West Virginia, to examine the stars Tau Ceti and Epsilon Eridani near the 1.420 gigahertz marker frequency, a region of the radio spectrum...

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Code name

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(Beta Centauri), Toliman (Alpha Centauri), Kuma (Nu Draconis), Deneb (Alpha Cygni), Propus (Eta Geminorum), Heka (Lambda Orionis), Rana (Delta Eridani)...

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