10 Trianguli

Star in the constellation Triangulum 10 Trianguli Triangulum IAU.svg center 280 right Red circle.svg 10 10 Trianguli 399 507 Location of 10 Trianguli (circled) J2000.0 (ICRS) Triangulum 02 18 56.99355 +28 38 33.6322 5.290.01 main sequence star A2 V +0.02 +0.04 0.40.1 8.9971 0.0729 +7.073 +0.836 −0.02 2.830.05 3.710.19 10810 9 9,023 3.73 +0.33 222 37244 1 H. Trianguli Minus, 10 Tri +28° 262 +27°360 2781 14252 10793 675 75276 10+Tri 10 Trianguli (HD 14252; HR 675; 1 H. Trianguli Minus), or simply 10 Tri is a solitary star located in the northern constellation Triangulum. It is faintly visible to the naked eye as a white-hued point of light with an apparent magnitude of 5.29. Gaia DR3 parallax measurements imply a distance of 363 light-years and it is slowly receding with a heliocentric radial velocity of 0.4 km/s. At its current distance, 10 Tri's brightness is diminished by an interstellar extinction of 0.11 magnitudes and it has an absolute magnitude of −0.02. 10 Trianguli has a stellar classification of A2 V, indicating that it is an ordinary A-type main-sequence star that is generating energy via hydrogen fusion at its core. It has 2.83 times the mass of the Sun and a slightly enlarged radius 3.71 times that of the Sun. It radiates 108 times the luminosity of the Sun from its photosphere at an effective temperature of 9023 K commas. 10 Trianguli is rather evolved for its class, having completed 92.5% of its main sequence lifetime at the age of 372 million years. It is metal enriched with an iron abundance of [Fe/H] = +0.33 or % of the Sun's and unlike most hot stars, it spins modestly with a projected rotational velocity of 22 km/s. 10 Trianguli has a 13th magnitude companion located 58.3" away along a position angle of 205°. It is an unrelated background star that is much more distant than 10 Trianguli. Together with ι Trianguli and 12 Trianguli, it forms part of the obsolete Triangulum Minus. It was once designated a Trianguli by John Flamsteed and was included in his Atlas Coelestis, but the designation is now dropped.Wagman M. Flamsteed's Missing Stars . Journal for the History of Astronomy 18 3 209–223 August 1987 1987JHA....18..209W 10.1177/002182868701800305 118445625 References 107720086182025984 Høg E. Fabricius C. Makarov V. V. Urban S. Corbin T. Wycoff G. Bastian U. Schwekendiek P. Wicenec A. The Tycho-2 catalogue of the 2.5 million brightest stars Astronomy and Astrophysics March 2000 355 L27–L30 17128864 2000A&A...355L..27H 0004-6361 Cowley A. Cowley C. Jaschek M. Jaschek C. A study of the bright stars. I. A catalogue of spectral classifications. The Astronomical Journal April 1969 74 375 0004-6256 10.1086/110819 121555804 1969AJ.....74..375C free Osawa Kiyoteru Spectral Classification of 533 B8-A2 Stars and the Mean Absolute Magnitude of A0 V Stars. The Astrophysical Journal American Astronomical Society 130 July 1959 0004-637X 10.1086/146706 120004061 159 1959ApJ...130..159O free Royer F. Grenier S. Baylac M.-O. Gómez A. E. Zorec J. Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i Astronomy & Astrophysics October 2002 393 3 897–911 0004-6361 1432-0746 10.1051/0004-6361:20020943 2002A&A...393..897R astro-ph/0205255 free Osawa K. Hata S. Three colour photometry of B8-A2 stars. Annals of the Tokyo Astronomical Observatory 1960 6 148 1960AnTok...6..148O Gontcharov G. A. Pulkovo Compilation of Radial Velocities for 35,495 Hipparcos stars in a common system Astronomy Letters November 2006 32 11 759–771 1063-7737 1562-6873 10.1134/S1063773706110065 2006AstL...32..759G 1606.08053 119231169 Zorec J. Royer F. Rotational velocities of A-type stars IV: Evolution of rotational velocities Astronomy & Astrophysics January 2012 537 A120 0004-6361 1432-0746 10.1051/0004-6361/201117691 2012A&A...537A.120Z 1201.2052 free 55586789 Anderson E. Francis Ch. XHIP: An extended hipparcos compilation Astronomy Letters May 2012 38 5 331–346 1063-7737 1562-6873 10.1134/S1063773712050015 2012AstL...38..331A 1108.4971 119257644 Kervella P. Thévenin F. Di Folco E. Ségransan D. The angular sizes of dwarf stars and subgiants: Surface brightness relations calibrated by interferometry Astronomy & Astrophysics April 8, 2004 426 1 297–307 0004-6361 1432-0746 10.1051/0004-6361:20035930 6077801 2004A&A...426..297K astro-ph/0404180 free Philip A. G. D. Egret D. An analysis of the Hauck-Mermillod catalogue of homogeneous four-color data. II. Astronomy and Astrophysics Supplement Series May 1980 40 199–205 0365-0138 1980A&AS...40..199P 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 2008MNRAS.389..869E 0806.2878 14878976 free Gebran M. Farah W. Paletou F. Monier R. Watson V. A new method for the inversion of atmospheric parameters of A/Am stars Astronomy & Astrophysics 18 April 2016 589 A83 0004-6361 1432-0746 10.1051/0004-6361/201528052 118549566 2016A&A...589A..83G 1603.01146 free Gontcharov G. A. Dependence of kinematics on the age of stars in the solar neighborhood Astronomy Letters December 2012 38 12 771–782 1063-7737 1562-6873 10.1134/S1063773712120031 2012AstL...38..771G 1606.08814 118345778 Gontcharov G. A. Spatial distribution and kinematics of OB stars Astronomy Letters November 2012 38 11 694–706 1063-7737 1562-6873 10.1134/S1063773712110035 2012AstL...38..694G 1606.09028 255202762 Takeda Yoichi Han Inwoo Kang Dong-Il Lee Byeong-Cheol Kim Kang-Min Compositional differences between the component stars of eclipsing close binary systems showing chemical peculiarities Monthly Notices of the Royal Astronomical Society 485 1 May 1, 2019 0035-8711 10.1093/mnras/stz449 119421663 1067–1084 2019MNRAS.485.1067T 1902.04766 free Verbunt F. van Gent R. H. The star catalogue of Hevelius: Machine-readable version and comparison with the modern Hipparcos Catalogue Astronomy and Astrophysics June 2010 516 A29 0004-6361 1432-0746 54171435 10.1051/0004-6361/201014003 2010A&A...516A..29V free Mason Brian D. Wycoff Gary L. Hartkopf William I. Douglass Geoffrey G. Worley Charles E. The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog The Astronomical Journal December 2001 122 6 3466–3471 0004-6256 10.1086/323920 2001AJ....122.3466M 119533755 free 107720051822288896 Gontcharov George A. Mosenkov Aleksandr V. Verifying reddening and extinction for Gaia DR1 TGAS main sequence stars Monthly Notices of the Royal Astronomical Society 28 September 2017 472 4 3805–3820 0035-8711 1365-2966 10.1093/mnras/stx2219 2017MNRAS.472.3805G 1709.01160 118879856 free Category:A2V stars Category:Triangulum Trianguli, 10 014252 010793 0675 Category:Durchmusterung objects