V453 Cygni
 Location of V453 Cygni | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 20h 06m 34.97s[1] |
| Declination | +35° 44′ 26.3″[1] |
| Characteristics | |
| Evolutionary stage | Subgiant |
| Spectral type | B0.4IV + B0.7IV |
| Variable type | β Cep[2] |
| Astrometry | |
| Radial velocity (Rv) | -15 km/s |
| Proper motion (μ) | RA: -3.129 mas/yr Dec.: -6.605 mas/yr |
| Parallax (π) | 0.5263 ± 0.0333 mas |
| Distance | 6,200 ± 400 ly (1,900 ± 100 pc) |
| Orbit | |
| Details | |
| A | |
| B | |
| Other designations | |
| Database references | |
| SIMBAD | data |
V453 Cygni (also designated HD 227696 or BD+35° 3964) is a detached eclipsing binary star system located in the constellation of Cygnus. It consists of two massive early B-type subgiant stars in a short-period, slightly eccentric orbit. The system is a member of the young open cluster NGC 6871 and exhibits β Cephei type pulsations in its primary component, making it a key object for studying the evolution and internal structure of high-mass stars.[3]
References
- ↑ 1.0 1.1 1.2 "Simbad - Object view". simbad.cds.unistra.fr. Retrieved 2025-12-17.
- ↑ Samus', N. N.; Kazarovets, E. V.; Durlevich, O. V.; Kireeva, N. N.; Pastukhova, E. N. (2017). "General catalogue of variable stars: Version GCVS 5.1". Astronomy Reports. 61 (1): 80. Bibcode:2017ARep...61...80S. doi:10.1134/S1063772917010085.
- ↑ Southworth, J.; Bowman, D. M.; Tkachenko, A.; Pavlovski, K. (2020-05-15), Discovery of β Cep pulsations in the eclipsing binary V453 Cygni, arXiv, doi:10.48550/arXiv.2005.07559, arXiv:2005.07559, retrieved 2025-12-17
Category:Cygnus (constellation) Cygni, V453 Category:B-type subgiants 227696 Category:Beta Cephei variables
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