Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation
Grus
Right ascension
23h 04m 39.62786s[1]
Declination
−53° 57′ 53.6651″[1]
Apparent magnitude (V)
5.37[2]
Characteristics
Evolutionary stage
asymptotic giant branch[3]
Spectral type
K5 III[4]
B−V color index
+1.45[2]
Astrometry
Radial velocity (Rv)
+17.7±0.8[5] km/s
Proper motion (μ)
RA: +57.047[1] mas/yr Dec.: −104.882[1] mas/yr
Parallax (π)
8.8748 ± 0.1536 mas[1]
Distance
368 ± 6 ly (113 ± 2 pc)
Absolute magnitude (MV)
−1.04[3]
Details
Radius
29.59+0.60 −2.02[1]R☉
Luminosity
199.9±4.0[1]L☉
Temperature
3,990+143 −40[1] K
Other designations
κ Gru, CPD−54° 10197, FK5 3845, HD 217902, HIP 113957, HR 8774, SAO 247711[6]
Database references
SIMBAD
data
κ Gruis, Latinised as Kappa Gruis, is a solitary[7] star in the southern constellation of Grus. With an apparent magnitude of 5.37,[2] it is visible to the naked eye as a dim, orange-hued point. The distance to this system, as determined from an annual parallax shift of 8.87 mas as seen from the Earth,[1] is roughly 368 light years. It is drifting further away with a heliocentric radial velocity of +18 km/s.[5] It is a member of the Arcturus moving group.[3]
This is an evolved K-type giant star on the asymptotic giant branch[3] with a stellar classification of K5 III.[4] With the supply of hydrogen at its core exhausted, it has expanded and now spans 29.6[1] times the radius of the Sun. It is radiating 200[1] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 3,990 K.[1]
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^ abCite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
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κ Gruis, Latinised as KappaGruis, is a solitary star in the southern constellation of Grus. With an apparent magnitude of 5.37, it is visible to the...
It was first discovered in 1971. Other members include the red giant KappaGruis and the M-class stars 27 Cancri, Alpha Vulpeculae and RT Hydrae. List...
Gamma Gruis or γ Gruis, formally named Aldhanab (/ˈældənæb/), is a star in the southern constellation of Grus (it once belonged to the Ptolemaic constellation...
Star 1.69 Beta Carinae Star 1.71 1.69 Gamma Velorum Double star 1.71 Alpha Gruis Star 1.77 1.75 Alioth Star 1.77 Alnitak Triple star system 1.79 Alpha Persei...
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...
stars of Musca, along with Fomalhaut, Alpha Pavonis, and Alpha and Beta Gruis, were all claimed by the Arrernte. Musca is bordered by Crux to the north...
Bergman W, Bishop JN, Bressac-de Paillerets B, Chompret A, Ghiorzo P, Gruis N, Hansson J, Harland M, Hayward N, Holland EA, Mann GJ, Mantelli M, Nancarrow...