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Revision as of 12:38, 7 November 2024 by AluminiumWithAnI (talk | contribs) (head paragraph)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)HD 1976 is a hierarchical triple system in the deep northern constellation of Cassiopeia, approximately 1,100 light-years (340 parsecs) from Earth. With an apparent magnitude of 5.580, the system is faintly visible to the naked eye under dark skies. It consists of an inner pair between a slowly pulsating B-type star and a less massive unknown-type star, which is distantly orbited by another B-type star. It is currently moving closer towards the Solar System at a heliocentric radial velocity of −9.70 km/s.
References
- Neiner, C.; Tkachenko, A.; MiMeS collaboration (2014). "Discovery of a magnetic field in the B pulsating system HD 1976". Astronomy & Astrophysics. 563. EDP Sciences: L7. doi:10.1051/0004-6361/201423595. ISSN 0004-6361.
- Docobo, J. A.; Costa, J. M. (1986). "First orbits for the visual double stars ADS 328, ADS 9043, and ADS 13048". The Astrophysical Journal Supplement Series. 60. American Astronomical Society: 945. doi:10.1086/191106. ISSN 0067-0049.
- Harmanec, P.; Brož, M.; Mayer, P.; et al. (2017-12-22). "Improved model of the triple system V746 Cassiopeiae that has a bipolar magnetic field associated with the tertiary". Astronomy & Astrophysics. 609. EDP Sciences: A5. doi:10.1051/0004-6361/201628363. ISSN 0004-6361.