Astronomy:q Herculis
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Short description: Star in the Hercules constellation
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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 |
| Distance | 375 ± 2 ly (114.9 ± 0.5 pc) |
| Absolute magnitude (MV) | +0.63[1] |
| Other designations | |
| 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] 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
- ↑ 1.0 1.1 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A XHIP record for this object at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "q Herculis". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=q+Herculis.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "VizieR Detailed Page". http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=5050&-corr=PK=HR&-out.max=9999&HR=6035. Retrieved 2012-07-13.
- ↑ Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 5.0 5.1 5.2 "TheSkyLive – HR 6035". https://theskylive.com/sky/stars/hr-6035-star. Retrieved 2025-10-17.
- ↑ Wagman, M. (August 1987), "Flamsteed's Missing Stars", Journal for the History of Astronomy 18 (3): 209–223, doi:10.1177/002182868701800305, Bibcode: 1987JHA....18..209W.
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