Multiple star system in the constellation Taurus
7 Tauri is a multiple star in the northern constellation of Taurus . It has a combined apparent visual magnitude of 5.95,[ 10] Bortle scale , it is faintly visible from suburban skies at night. Measurements made with the Gaia spacecraft show an annual parallax shift of mas light years from the Sun.
7 Tauri is a binary star with two nearly equal components about ″ stellar classification of A7V.[ 4] spectroscopic binary . In the past, these stars had been treated as a single system, but they are now known to have different proper motions and somewhat different distances.[ 4]
References
^ a b c d 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 Fabricius, C.; Høg, E.; Makarov, V. V.; Mason, B. D.; Wycoff, G. L.; Urban, S. E. (March 2002). "The Tycho double star catalogue" . Astronomy & Astrophysics . 384 (1): 180– 189. Bibcode :2002A&A...384..180F . doi :10.1051/0004-6361:20011822 ISSN 0004-6361 . ^ a b 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 c d e f g h i Tokovinin, A. A. (1998). "New spectroscopic components in six multiple systems". Astronomy Letters . 24 (3): 288. Bibcode :1998AstL...24..288T . ^ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters . 32 (11): 759– 771. arXiv :1606.08053 Bibcode :2006AstL...32..759G . doi :10.1134/S1063773706110065 . ISSN 1063-7737 . S2CID 119231169 . ^ Malkov, O. Yu.; et al. (2012). "Dynamical Masses of a Selected Sample of Orbital Binaries" . Astronomy & Astrophysics . 546 : 5. Bibcode :2012A&A...546A..69M . doi :10.1051/0004-6361/201219774 ^ a b 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 .^ Stassun, Keivan G.; Oelkers, Ryan J.; Pepper, Joshua; Paegert, Martin; De Lee, Nathan; Torres, Guillermo; Latham, David W.; Charpinet, Stéphane; Dressing, Courtney D.; Huber, Daniel; Kane, Stephen R.; Lépine, Sébastien; Mann, Andrew; Muirhead, Philip S.; Rojas-Ayala, Bárbara; Silvotti, Roberto; Fleming, Scott W.; Levine, Al; Plavchan, Peter; the TESS Target Selection Working Group (2018). "The TESS Input Catalog and Candidate Target List" . The Astronomical Journal . 156 (3): 102. arXiv :1706.00495 Bibcode :2018AJ....156..102S . doi :10.3847/1538-3881/aad050 S2CID 73582386 . ^ "7 Tau" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2022-09-20 .^ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters . 38 (5): 331– 346. arXiv :1108.4971 Bibcode :2012AstL...38..331A . doi :10.1134/S1063773712050015 . eISSN 1562-6873 . ISSN 1063-7737 . S2CID 119257644 .
