17 Eridani

Star in the constellation Eridanus v Eridani Nu Eridaniν (Nu) Eridani Eridanus constellation map.svg center 250 right Red circle.svg 10 17 Eridani 580 150 Location of 17 Eridani (circled in red) J2000.0 Eridanus 03 30 37.05823 −05 04 30.5239 4.74 main sequence B9 III or B9Vs −0.092 0.008 +15.0 4.2 14.23 7.27 8.07 0.20 −0.72 3.55 0.04 3.2 3.603 0.017 267.9 15.2 14.4 11143 51 commas 86 178 10 9 v Eri 17 Eri −05°674 1097 21790 16341 1070 130528 17+Eri 17 Eridani is a single star in the equatorial constellation of Eridanus. It has the Bayer designation v Eridani, while 17 Eridani is the Flamsteed designation. This object is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 4.74. It is moving further from the Earth with a heliocentric radial velocity of around +15 km/s. Houk and Swift (1999) found a stellar classification of B9 III for this star, while Cowley et al. (1969) show B9 Vs. Stellar models suggest the star is still generating energy through hydrogen fusion at its core, although nearing the end of its main sequence life. It is about 178 million years old with 3.55 times the mass of the Sun and around 3.2 times the size of the Sun. The star is radiating 268 times the Sun's luminosity from its photosphere at an effective temperature of 11143 K commas. These coordinates are a source for X-ray emission, which may be coming from an unresolved companion. References 30em 17 Eri 2019-05-27 Van Leeuwen F. Validation of the new Hipparcos reduction Astronomy and Astrophysics 474 2 653–664 2007 0708.1752 2007A&A...474..653V 10.1051/0004-6361:20078357 18759600 . XHIP: An extended hipparcos compilation Anderson E. Francis Ch. Astronomy Letters . 38 5 331 2012 2012AstL...38..331A 1108.4971 10.1134/S1063773712050015 119257644 Search for low-mass PMS companions around X-ray selected late B stars Hubrig S. Le Mignant D. North P. Krautter J. Astronomy and Astrophysics 1 372 152–164 June 2001 10.1051/0004-6361:20010452 2001A&A...372..152H astro-ph/0103201 17507782 . Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars 5 1999 Michigan Spectral Survey Houk N. Swift C. 1999MSS...C05....0H . Zorec J. Royer F. Asplund Martin Cassisi Santi Ramirez Ivan Melendez Jorge Bensby Thomas Feltzing Sofia Rotational velocities of A-type stars. IV. Evolution of rotational velocities 1 Astronomy and Astrophysics 537 A120 2012 1201.2052 10.1051/0004-6361/201117691 2012A&A...537A.120Z 55586789 . 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 . Cowley A. Cowley C. Jaschek M. Jaschek C. A study of the bright A stars. I. A catalogue of spectral classifications 1 Astronomical Journal 74 375–406 April 1969 10.1086/110819 1969AJ.....74..375C 1 Huang Wenjin Gies D. R. McSwain M. V. A Stellar Rotation Census of B Stars: From ZAMS to TAMS The Astrophysical Journal 722 1 605–619 October 2010 10.1088/0004-637X/722/1/605 . 2010ApJ...722..605H 1008.1761 118532653 1 Pasinetti Fracassini L. E. Pastori L. Covino S. Pozzi A. Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) Third Astronomy and Astrophysics 367 2 521–524 February 2001 10.1051/0004-6361:20000451 . 2001A&A...367..521P astro-ph/0012289 425754 Category:B-type main-sequence stars Category:B-type giants Category:Eridanus (constellation) Eridani, v BD-05 0674 Eridani, 17 021790 016341 1070