HD 141846

HD 141846 is a double star in the southern constellation of Apus. As of 1996, the pair have an angular separation of 0.7″ along a position angle of 332°.[3]

HD 141846

Observation data Epoch J2000      Equinox J2000
Constellation	Apus
Right ascension	15^h 59^m 55.13299^s[1]
Declination	−78° 01′ 38.1884″[1]
Apparent magnitude (V)	6.393[2] (6.92 + 7.53)[3]
Characteristics
Spectral type	F3IV[4]
B−V color index	0.38[5]
Astrometry
Proper motion (μ)	RA: −1.99±0.63[1] mas/yr Dec.: −72.24±0.81[1] mas/yr
Parallax (π)	11.37 ± 0.61[1] mas
Distance	290 ± 20 ly (88 ± 5 pc)
Absolute magnitude (MV)	1.67[2]
Details
Luminosity	16.8[6] L☉
Temperature	6,637[6] K
Metallicity [Fe/H]	−0.18[2] dex
Age	1.3[2] Gyr
Other designations
CD−77° 764 , HD 141846, HIP 78360, SAO 257341
Database references
SIMBAD	data

References

1. van Leeuwen, F. (November 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.
2. Holmberg, J.; Nordström, B.; Andersen, J. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics", Astronomy and Astrophysics, 501 (3): 941–947, arXiv:0811.3982, Bibcode:2009A&A...501..941H, doi:10.1051/0004-6361/200811191
3. Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122: 3466–3471, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22
4. Houk, Nancy; Cowley, A. P. (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, 1, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H.
5. Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; et al. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. doi:10.1888/0333750888/2862.
6. McDonald, I.; et al. (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.

External links

• Image HD 141846
• www.chara.gsu.edu/