10 Serpentis

Star in the constellation Serpens 10 Serpentis J2000 Serpens 15 28 38.23670 +01 50 31.4852 5.15 main sequence A6 III or A7 IV 0.245 0.005 −10.2 2.8 −85.35 −34.31 25.16 0.31 2.15 1.64 1.87 11.9 0.4 4.24 0.14 7,550 110 424 10 Ser 3221 +02°2965 137898 75761 5746 121020 10+Ser 10 Serpentis is a single, white-hued star in Serpens Caput, the western section of the equatorial constellation of Serpens. It is faintly visible to the naked eye with an apparent visual magnitude of 5.15. Located around 39.7 pc ly on flip distant, it is moving closer to the Sun with a heliocentric radial velocity of −10 km/s and will make its closest approach in around 983,000 years at a separation of about 34.2 pc ly on flip. Abt and Morrell (1995) gave this star a stellar classification of A6 III, matching an evolved red giant star that has used up its core hydrogen. In contrast, Houk and Swift (1999) classed it A7 IV, which is more in line with an evolving subgiant star that is on its way to becoming a giant. It has a high rate of spin with a projected rotational velocity of 115 km/s, giving it an oblate shape with an equatorial bulge that is an estimated 7% larger than the polar radius. The star is about 424 million years old with 1.64 times the mass of the Sun and is radiating 12 times the Sun's luminosity from its photosphere at an effective temperature of roughly commas 7,872 K. References 10 Ser 2018-03-19 Validation of the new Hipparcos reduction van Leeuwen F. . Astronomy and Astrophysics 474 2 653–664 2007 0708.1752 2007A&A...474..653V 10.1051/0004-6361:20078357 18759600 Eggleton P. P. Tokovinin A. A. A catalogue of multiplicity among bright stellar systems Monthly Notices of the Royal Astronomical Society 389 2 869–879 September 2008 10.1111/j.1365-2966.2008.13596.x free 2008MNRAS.389..869E . 0806.2878 14878976 XHIP: An extended hipparcos compilation Anderson E. Francis Ch. Astronomy Letters 38 5 331 2012 2012AstL...38..331A 10.1134/S1063773712050015 1108.4971 119257644 . Abt Helmut A. Morrell Nidia I. The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars Astrophysical Journal Supplement Series 99 135 1995 . 10.1086/192182 1995ApJS...99..135A free Houk N. Swift C. Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars Michigan Spectral Survey 5 1999 1999MSS...C05....0H . van Belle Gerard T. Interferometric observations of rapidly rotating stars The Astronomy and Astrophysics Review 20 1 51 March 2012 10.1007/s00159-012-0051-2 2012A&ARv..20...51V . 1204.2572 119273474 Rotational velocities of A-type stars. IV. Evolution of rotational velocities Astronomy & Astrophysics Zorec J. Royer F. 537 A120 2012 10.1051/0004-6361/201117691 2012A&A...537A.120Z 1201.2052 55586789 . David Trevor J. Hillenbrand Lynne A. The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets The Astrophysical Journal 804 2 146 2015 2015ApJ...804..146D 10.1088/0004-637X/804/2/146 1501.03154 33401607 . Doyle Lauren Armstrong David J. Bayliss Daniel Rodel Toby Kunovac Vedad The TESS-SPOC FFI target sample explored with Gaia Monthly Notices of the Royal Astronomical Society 2024 529 2 1802 10.1093/mnras/stae616 free 2403.02407 2024MNRAS.529.1802D Category:A-type main-sequence stars Category:Serpens Category:Durchmusterung objects Serpentis, 10 137898 075761 5746