106 Herculis

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106 Herculis
Observation data
Epoch J2000      Equinox J2000
Constellation Hercules
Right ascension 18h 20m 17.91480s[1]
Declination +21° 57′ 40.6656″[1]
Apparent magnitude (V) 4.96[2]
Characteristics
Spectral type M0III[3]
U−B color index +1.98[4]
B−V color index +1.58[4]
Astrometry
Radial velocity (Rv) -35.20 ± 0.29[5] km/s
Proper motion (μ) RA: 17.78[1] mas/yr
Dec.: -59.59[1] mas/yr
Parallax (π) 8.32 ± 0.29[1] mas
Distance 390 ± 10 ly
(120 ± 4 pc)
Absolute magnitude (MV) -0.664[5]
Details[3]
Surface gravity (log g) 1.56 ± 0.09 cgs
Temperature 3789 ± 6 K
Metallicity [Fe/H] 0.00 ± 0.03 dex
Other designations
BD+21° 3390, HD 168720, HIP 89861, HR 6868, SAO 85941
Database references
SIMBAD data

106 Herculis (106 Her) is a star in the constellation Hercules. Its apparent magnitude is 4.96.[2] Based on its parallax, the star is estimated to be 390 light-years (120 parsecs) away.[3]

106 Herculis is a red giant with a spectral type of M0III. Its surface temperature is about 3,789 K.[3]

References[edit]

  1. ^ a b c d e van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. 
  2. ^ a b Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D. 
  3. ^ a b c d Wu, Yue; Singh, H. P.; Prugniel, P.; Gupta, R.; Koleva, M. (2010). "Coudé-feed stellar spectral library – atmospheric parameters". Astronomy & Astrophysics. 525: A71. arXiv:1009.1491Freely accessible. Bibcode:2011A&A...525A..71W. doi:10.1051/0004-6361/201015014. 
  4. ^ a b Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV data. Bibcode:1986EgUBV........0M. 
  5. ^ a b Soubiran, C.; Bienaymé, O.; Mishenina, T. V.; Kovtyukh, V. V. (2008). "Vertical distribution of Galactic disk stars". Astronomy & Astrophysics. 480: 91. arXiv:0712.1370Freely accessible. Bibcode:2008A&A...480...91S. doi:10.1051/0004-6361:20078788.