Misplaced Pages

HD 1976

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.

This is an old revision of this page, as edited by AluminiumWithAnI (talk | contribs) at 01:14, 10 November 2024 (starbox). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Revision as of 01:14, 10 November 2024 by AluminiumWithAnI (talk | contribs) (starbox)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)

Triple star system in the constellation Cassiopeia
HD 1976
Location of HD 1976 (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Cassiopeia
Right ascension 00 24 15.65400
Declination +52° 01′ 11.7032″
Apparent magnitude (V) 5.580 (combined)
Characteristics
Spectral type (B5IV + A or F) + B
U−B color index -0.619
B−V color index -0.121
J−H color index -0.102
J−K color index -0.106
Variable type Slowly pulsating B-type star (A)
Astrometry
Radial velocity (Rv)−9.70 ± 0.49 km/s
Proper motion (μ) RA: 15.504 mas/yr
Dec.: -4.061 mas/yr
Parallax (π)2.4621 ± 0.33 mas
Distanceapprox. 1,300 ly
(approx. 410 pc)
Orbit
PrimaryHD 1976 A
CompanionHD 1976 B
Orbit
PrimaryHD 1976 AB
CompanionHD 1976 C
Details
HD 1976 A
HD 1976 B
HD 1976 C
Other designations
V746 Cassiopeiae, AG+51°39, BD+51°62, Gaia DR3 418916648901801728, GC 476, HD 1976, HIP 1921, HR 91, SAO 21366, PPM 25297, WDS J00243+5201AB, TIC 202418751, TYC 3260-2342-1, GSC 03260-02342, 2MASS J00241564+5201119,
Database references
SIMBADHD 1976

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.

Stellar properties

References

  1. ^ Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  2. ^ Høg, E.; et al. (February 2000). "The Tycho-2 Catalogue of the 2.5 Million Brightest Stars". Astronomy and Astrophysics. 355 (1): L27 – L30. Bibcode:2000A&A...355L..27H.
  3. ^ "HD 1976". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 10 November 2024.
  • 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.