Nu Chamaeleontis

ν Chamaeleontis
Observation data
Epoch J2000      Equinox J2000
Constellation Chamaeleon
Right ascension 09h 46m 20.6307s[1]
Declination −76° 46′ 34.026″[1]
Apparent magnitude (V) 5.43[2]
Characteristics
Spectral type G8III[3]
U−B color index +0.57[4]
B−V color index +0.89[4]
Astrometry
Radial velocity (Rv)11.18 ± 0.14[5] km/s
Proper motion (μ) RA: 83.95[6] mas/yr
Dec.: −56.12[6] mas/yr
Parallax (π)17.69 ± 0.22[6] mas
Distance184 ± 2 ly
(56.5 ± 0.7 pc)
Absolute magnitude (MV)1.59[2]
Details
Mass1.64 ± 0.20[2] M☉
Radius6.2[2] R☉
Luminosity21.19[7] L☉
Surface gravity (log g)3.07 ± 0.15[2] cgs
Temperature5131[7] K
Rotational velocity (v sin i)1.2 ± 1.0[5] km/s
Other designations
CPD−76° 598, FK5 2784, HD 85396, HIP 47956, HR 3902, SAO 256658
Database references
SIMBADdata

Nu Chamaeleontis (ν Cha) is a star located in the constellation Chamaeleon. Nu Chamaeleontis is also known as HR 3902, and HD 85396.

Nu Chamaeleontis is a G-type giant star with an effective temperature of 5,131 K.[7] It has an apparent visual magnitude of 5.43, an absolute magnitude of 1.59, and a mass of 1.64 M☉.[2] Based on its parallax, it is located 184 light-years, or 56.5 parsecs, away from the Sun.[6]

References

  1. 1 2 Gaia Collaboration (2016). "Gaia Data Release 1". Astronomy & Astrophysics. 595: A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512.
  2. 1 2 3 4 5 6 Allende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv:astro-ph/9911002. Bibcode:1999A&A...352..555A.
  3. ↑ Houk, N.; Cowley, A. P. (1975). "University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90°.0 to -53°.0". Michigan Catalogue of two-dimensional spectral types for the HD stars. 1. Bibcode:1975mcts.book.....H.
  4. 1 2 Johnson, H. L. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99. Bibcode:1966CoLPL...4...99J.
  5. 1 2 de Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars. V. Southern stars". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762.
  6. 1 2 3 4 van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
  7. 1 2 3 McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.


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