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Kappa Aurigae information


κ Aurigae
Location of κ Aurigae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 06h 15m 22.68906s[1]
Declination +29° 29′ 53.0760″[1]
Apparent magnitude (V) 4.335[2]
Characteristics
Evolutionary stage horizontal branch[3]
Spectral type G8.5 IIIb[4]
U−B color index +0.812[2]
B−V color index +1.023[2]
R−I color index 0.54
Astrometry
Radial velocity (Rv)+20.69 ± 0.15[5] km/s
Proper motion (μ) RA: −70.88[1] mas/yr
Dec.: −261.42[1] mas/yr
Parallax (π)18.43 ± 0.23 mas[1]
Distance177 ± 2 ly
(54.3 ± 0.7 pc)
Absolute magnitude (MV)+0.65[6]
Details
Mass1.25[7] M
Radius11[5] R
Luminosity54[5] L
Surface gravity (log g)2.7[5] cgs
Temperature4,732[5] K
Metallicity [Fe/H]−0.33[5] dex
Rotational velocity (v sin i)2.5[5] km/s
Age5.59[7] Gyr
Other designations
κ Aur, 44 Aurigae, BD+29°1154, FK5 1168, HD 43039, HIP 29696, HR 2219, SAO 78143, 2MASS J06152269+2929535, Gaia DR2 3436911415279548032[8]
Database references
SIMBADdata

Kappa Aurigae, Latinised from κ Aurigae, is the Bayer designation for a star in the northern constellation of Auriga. It is visible to the naked eye with an apparent visual magnitude of 4.3.[2] Based upon an annual parallax shift of 18.43 mas,[1] it is approximately 177 light-years (54 parsecs) distant from Earth.

This is an evolved giant star with a stellar classification of G8.5 IIIb.[4] It is a red clump star, which means it is towards the cool end of the horizontal branch and is generating energy through the fusion of helium at its core.[3] Kappa Aurigae has expanded to 11 times the radius of the Sun and shines with 54 times the Sun's luminosity. This energy is radiated into outer space from the outer envelope at an effective temperature of 4,732 K.[5] At this heat, the star glows with the orange hue of a G-type star.[9]

  1. ^ a b c d e f 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 mnras172_667 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference apj539_2_732 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference mnras389_2_869 was invoked but never defined (see the help page).
  5. ^ a b c d e f g h Cite error: The named reference aj135_1_209 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference luck2015 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference csiro was invoked but never defined (see the help page).

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Kappa Aurigae

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Kappa Aurigae, Latinised from κ Aurigae, is the Bayer designation for a star in the northern constellation of Auriga. It is visible to the naked eye with...

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Cambridge University Press. p. 170. ISBN 0-521-44921-9. Kaler, James B. "Saiph (Kappa Orionis)". Stars. University of Illinois. Archived from the original on...

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"Images of embedded Jovian planet formation at a wide separation around AB Aurigae". Nature Astronomy. 6 (6). Springer Science and Business Media LLC: 751–759...

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B2Ia – Chi2 Orionis B2Ib – 9 Cephei B3V – Eta Ursae Majoris B3V – Eta Aurigae B3Ia – Omicron2 Canis Majoris B5Ia – Eta Canis Majoris B8Ia – Rigel A-type...

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planet and disk discoveries include: New high resolution imaging of the AB Aurigae system Detection of extended outer regions of the debris ring around HR...

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Miki (2004-04-01). "Spiral Structure in the Circumstellar Disk around AB Aurigae". The Astrophysical Journal. 605 (1): L53–L56. Bibcode:2004ApJ...605L....

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