Star in the constellation Cassiopeia
54 Cassiopeiae is a star in the northern constellation Cassiopeia . Located 88 ly (27 pc ) from Earth,[ 2] it has an apparent magnitude of 6.59,[ 3] which makes it hard to be seen by the naked eye even from dark skies. Its absolute magnitude is 4.4.[ 5] It is a F-type main-sequence star with a stellar classification F8V, currently fusing atoms of hydrogen into helium at its core.[ 4]
Astrometric measurements by the Gaia spacecraft suggest the presence of a planetary companion to 54 Cassiopeiae. This planet is seven times more massive than Jupiter and orbits 54 Cassiopieae with an orbital period of 401 days (1.10 years).[ 6]
^ Anderson, E.; Francis, Ch. (2012-05-01). "XHIP: An extended hipparcos compilation". Astronomy Letters . 38 (5): 331–346. arXiv :1108.4971 . Bibcode :2012AstL...38..331A . doi :10.1134/S1063773712050015 . ISSN 1063-7737 .
^ a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties" . Astronomy and Astrophysics . 674 : A1. arXiv :2208.00211 . Bibcode :2023A&A...674A...1G . doi :10.1051/0004-6361/202243940 . S2CID 244398875 .
Gaia DR3 record for this source at VizieR .
^ a b Nordström, B.; Mayor, M.; Andersen, J.; Holmberg, J.; Pont, F.; Jørgensen, B. R.; Olsen, E. H.; Udry, S.; Mowlavi, N. (2004-05-01). "The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ∼14 000 F and G dwarfs" . Astronomy and Astrophysics . 418 : 989–1019. arXiv :astro-ph/0405198 . Bibcode :2004A&A...418..989N . doi :10.1051/0004-6361:20035959 . ISSN 0004-6361 .
^ a b Hinkel, Natalie R.; Mamajek, Eric E.; Turnbull, Margaret C.; Osby, Ella; Shkolnik, Evgenya L.; Smith, Graeme H.; Klimasewski, Alexis; Somers, Garrett; Desch, Steven J. (2017-10-01). "A Catalog of Stellar Unified Properties (CATSUP) for 951 FGK-Stars within 30 pc" . The Astrophysical Journal . 848 (1): 34. arXiv :1709.04465 . Bibcode :2017ApJ...848...34H . doi :10.3847/1538-4357/aa8b0f . ISSN 0004-637X .
^ a b c d e Holmberg, J.; Nordström, B.; Andersen, J. (2009-07-01). "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics". Astronomy and Astrophysics . 501 (3): 941–947. arXiv :0811.3982 . Bibcode :2009A&A...501..941H . doi :10.1051/0004-6361/200811191 . ISSN 0004-6361 .
^ a b c Sahlmann, Johannes; Gómez, Pablo (2024-04-14). "Machine learning-based identification of Gaia astrometric exoplanet orbits". arXiv :2404.09350 [astro-ph.EP ].
^ a b McDonald, I.; Zijlstra, A. A.; Watson, R. A. (2017-10-01). "Fundamental parameters and infrared excesses of Tycho-Gaia stars" . Monthly Notices of the Royal Astronomical Society . 471 (1): 770–791. arXiv :1706.02208 . Bibcode :2017MNRAS.471..770M . doi :10.1093/mnras/stx1433 . ISSN 0035-8711 .
^ a b Latham, David W.; Stefanik, Robert P.; Torres, Guillermo; Davis, Robert J.; Mazeh, Tsevi; Carney, Bruce W.; Laird, John B.; Morse, Jon A. (2002-08-01). "A Survey of Proper-Motion Stars. XVI. Orbital Solutions for 171 Single-lined Spectroscopic Binaries". The Astronomical Journal . 124 (2): 1144–1161. Bibcode :2002AJ....124.1144L . doi :10.1086/341384 . ISSN 0004-6256 .
^ "The Extrasolar Planet Encyclopaedia — 54 Cas b" . Extrasolar Planets Encyclopaedia . Paris Observatory .