Q Herculis

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q Herculis
Observation data
Epoch J2000.0        Equinox J2000.0
Constellation Hercules [1]
Right ascension 16h 11m 28.7s [2] [3]
Declination +16° 39′ 56″ [2] [3]
Apparent magnitude  (V)6.08 [2] [3]
Characteristics
Evolutionary stage main sequence [4]
Spectral type A0V [3]
U−B color index 0 [2] [3]
B−V color index 0.02 [2] [3]
Astrometry
Parallax (π)8.6995±0.0353  mas [5] [ failed verification ]
Distance 375 ± 2  ly
(114.9 ± 0.5  pc)
Absolute magnitude  (MV)+0.63 [1]
Other designations
q Her, 48 Serpentis, BD+17 2982, SAO 101994, HD 145647, HR 6035 [2]
Database references
SIMBAD data

q Herculis (48 Serpentis) is a double star in the constellation Hercules that is situated at a distance of approximately 439.95 light-years from the the Sun. It's apparent magnitude is +6.081. [5] [ failed verification ] The age of q Herculis is determined to be about 719 million years.[ citation needed ]

The largest star q Herculis is a white star of the spectral type A0V [5] , or A0. It has a mass of approximately 2.999  M☉, a radius of approximately 2.592  R☉,[ citation needed ] and a luminosity of approximately 52.481  L☉. Its effective temperature is approximately 9882 K [5] .

Nomenclature

q Herculis is this double star's Bayer designation. It was once considered to be in the Serpens, where it got its Flamsteed designation 48 Serpentis. [6]

References

  1. 1 2 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters . 38 (5): 331. arXiv: 1108.4971 . Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.
  2. 1 2 3 4 5 6 "q Herculis". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2025-10-17.
  3. 1 2 3 4 5 6 "VizieR Detailed Page". Archived from the original on 2016-03-04. Retrieved 2012-07-13.
  4. ↑ Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211 . Bibcode:2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940 . S2CID   244398875. Gaia DR3 record for this source at VizieR.
  5. 1 2 3 4 "TheSkyLive – HR 6035" . Retrieved 2025-10-17.
  6. ↑ Wagman, M. (August 1987), "Flamsteed's Missing Stars", Journal for the History of Astronomy , 18 (3): 209–223, Bibcode:1987JHA....18..209W, doi:10.1177/002182868701800305, S2CID   118445625.


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