HD 149837

Last updated
HD 149837
Observation data
Epoch J2000       Equinox J2000
Constellation Ara
Right ascension 16h 40m 50.48446s [1]
Declination −60° 26 47.2030 [1]
Apparent magnitude  (V)6.18 [2]
Characteristics
Spectral type F6V [3]
Apparent magnitude  (B)6.660
Apparent magnitude  (V)6.223
Apparent magnitude  (J)5.217
Apparent magnitude  (H)4.969
Apparent magnitude  (K)4.886
B−V color index +0.17 [2]
Astrometry
Radial velocity (Rv)3.9±0.2 [4]  km/s
Proper motion (μ)RA: +59.02 [1]   mas/yr
Dec.: –74.20 [1]   mas/yr
Parallax (π)31.92 ± 0.53  mas [1]
Distance 102 ± 2  ly
(31.3 ± 0.5  pc)
Details
HD 149837 A
Mass 1.25 [5]   M
Luminosity 2.8 [6]   L
Surface gravity (log g)4.16 [3]   cgs
Temperature 6,354 [3]   K
Metallicity [Fe/H]−0.08 [3]   dex
Age 2.7 [7]   Gyr
HD 149837 B
Mass 0.79 [5]   M
Other designations
CD–60° 6381, HD 149837, HIP 81657, HR 6177, SAO 253651.
Database references
SIMBAD data

HD 149837 is a binary star in the southern constellation of Ara.

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References

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  2. 1 2 Nicolet, B. (1978), "Photoelectric photometric Catalogue of homogeneous measurements in the UBV System", Astronomy and Astrophysics Supplement Series, 34: 1–49, Bibcode:1978A&AS...34....1N
  3. 1 2 3 4 Gray, R. O.; et al. (July 2006), "Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample", The Astronomical Journal , 132 (1): 161–170, arXiv: astro-ph/0603770 , Bibcode:2006AJ....132..161G, doi:10.1086/504637, S2CID   119476992
  4. Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv: 1606.08053 . Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID   119231169.
  5. 1 2 Tokovinin, Andrei (April 2014), "From Binaries to Multiples. II. Hierarchical Multiplicity of F and G Dwarfs", The Astronomical Journal, 147 (4): 14, arXiv: 1401.6827 , Bibcode:2014AJ....147...87T, doi:10.1088/0004-6256/147/4/87, S2CID   56066740, 87
  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 , S2CID   118665352
  7. 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, S2CID   118577511