Star in the constellation Lynx
DU Lyncis is a single[ 8] variable star in the constellation Lynx . It is a faint star but visible to the naked eye with an apparent visual magnitude of 5.15.[ 2] parallax shift of mas [ 1] light years from the Sun. The star is moving closer with a heliocentric radial velocity of −37 km/s.[ 5]
The star was listed as a suspected variable star, NSV 3721, in 1998.[ 9] et al. [ 10] variable star designation , DU Lyncis, in 2003.[ 11]
This is an aging red giant star with a stellar classification of M3 III, indicating that it has consumed the hydrogen at its core and evolved away from the main sequence . Eggen lists it as being on the asymptotic giant branch .[ 12] semiregular variable of type SRb,[ 4] [ 13] [ 3] luminosity approximately 536 times that of the Sun and has an effective temperature of 3,779 K.[ 6]
^ a b c d e f Brown, A. G. A. ; et al. (Gaia collaboration ) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties" . Astronomy & Astrophysics 616 . A1. arXiv :1804.09365 Bibcode :2018A&A...616A...1G doi :10.1051/0004-6361/201833051 ^ a b c d Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters . 38 (5): 331. arXiv :1108.4971 Bibcode :2012AstL...38..331A . doi :10.1134/S1063773712050015 . S2CID 119257644 . ^ a b Glass, I. S.; Van Leeuwen, F. (2007). "Semiregular variables in the solar neighbourhood" . Monthly Notices of the Royal Astronomical Society . 378 (4): 1543– 1549. arXiv :0704.3150 Bibcode :2007MNRAS.378.1543G . doi :10.1111/j.1365-2966.2007.11903.x S2CID 14332208 . ^ a b Samus', N. N; Kazarovets, E. V; Durlevich, O. V; Kireeva, N. N; Pastukhova, E. N (2017). "General catalogue of variable stars: Version GCVS 5.1". Astronomy Reports . 61 (1): 80. Bibcode :2017ARep...61...80S . doi :10.1134/S1063772917010085 . S2CID 125853869 . ^ a b de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics , 546 : 14, arXiv :1208.3048 Bibcode :2012A&A...546A..61D , doi :10.1051/0004-6361/201219219 , S2CID 59451347 , A61. ^ a b c McDonald, I.; et al. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars" . Monthly Notices of the Royal Astronomical Society . 427 (1): 343– 57. arXiv :1208.2037 Bibcode :2012MNRAS.427..343M . doi :10.1111/j.1365-2966.2012.21873.x S2CID 118665352 . ^ "DU Lyncis" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 3 September 2018 .^ Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society , 389 (2): 869, arXiv :0806.2878 Bibcode :2008MNRAS.389..869E , doi :10.1111/j.1365-2966.2008.13596.x S2CID 14878976 . ^ Kazarovets, E. V.; Samus, N. N.; Durlevich, O. V. (December 1998). "New Catalogue of Suspected Variable Stars. Supplement - Version 1.0" . Information Bulletin on Variable Stars . 4655 . Bibcode :1998IBVS.4655....1K . Retrieved 11 December 2024 . ^ Percy, John R.; Dunlop, Heather; Kassim, Lola; Thompson, Raymond R. (March 2001). "Periods of 25 Pulsating Red Giants" (PDF) . Information Bulletin on Variable Stars . 5041 . Bibcode :2001IBVS.5041....1P . Retrieved 11 December 2024 . ^ Kazarovets, E. V.; Kireeva, N. N.; Samus, N. N.; Durlevich, O. V. (May 2003). "The 77th Name-List of Variable Stars" (PDF) . Information Bulletin on Variable Stars . 5422 : 1– 56. Bibcode :2003IBVS.5422....1K . Retrieved 11 December 2024 . ^ Eggen, O. J. (1992), "Asymptotic giant branch stars near the sun", The Astronomical Journal , 104 : 275, Bibcode :1992AJ....104..275E , doi :10.1086/116239 . ^ Watson, Christopher (4 January 2010). "DU Lyncis" . AAVSO Website . American Association of Variable Star Observers . Retrieved 20 March 2016 .
