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| '''HD 1976''' is a ] in the deep northern ] of ], approximately {{convert|1100|ly|pc|abbr=off}} from ]. With an ] of 5.580, the system is faintly visible to the naked eye under dark skies. It consists of an inner pair between a ] and a less massive unknown-type star, which is distantly orbited by another ]. It is currently moving closer towards the ] at a heliocentric ] of −9.70 km/s. | '''HD 1976''' is a ] in the deep northern ] of ], approximately {{convert|1100|ly|pc|abbr=off}} from ]. It has the ] '''V746 Cassiopeiae''' (abbreviated to V746 Cas). With an ] of 5.580, the system is faintly visible to the naked eye under dark skies. It consists of an inner pair between a ] and a less massive unknown-type star, which is distantly orbited by another ]. It is currently moving closer towards the ] at a heliocentric ] of −9.70 km/s. | ||
| ==References== | ==References== | ||
| * {{cite journal | last=Neiner | first=C. | last2=Tkachenko | first2=A. | author3=MiMeS collaboration | title=Discovery of a magnetic field in the B pulsating system HD 1976 | journal=Astronomy & Astrophysics | publisher=EDP Sciences | volume=563 | year=2014 | issn=0004-6361 | doi=10.1051/0004-6361/201423595 | doi-access=free | page=L7}} | * {{cite journal | last=Neiner | first=C. | last2=Tkachenko | first2=A. | author3=MiMeS collaboration | title=Discovery of a magnetic field in the B pulsating system HD 1976 | journal=Astronomy & Astrophysics | publisher=EDP Sciences | volume=563 | year=2014 | issn=0004-6361 | doi=10.1051/0004-6361/201423595 | doi-access=free | page=L7}} | ||
Revision as of 12:59, 7 November 2024
HD 1976 is a hierarchical triple system in the deep northern constellation of Cassiopeia, approximately 1,100 light-years (340 parsecs) from Earth. It has the variable-star designation V746 Cassiopeiae (abbreviated to V746 Cas). 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.