14 Eridani

Star in the constellation Eridanus Eridanus constellation map.svg center 250 right Red circle.svg 10 14 Eridani 642 230 Location of 14 Eridani (circled in red) J2000 Eridanus 03 16 35.75439 −09 09 16.3318 6.143 main sequence F5 V Fe−0.7 CH−0.5 0.399 −5.3 2.9 +8.057 +22.871 26.9856 0.2356 3.47 1.31 1.48 0.9 0.8 3.87 0.04 4.34 0.14 −0.10 6719 228 commas 1.391 14 Eri −09°627 20395 15244 988 130395 3918 185595 J03158-0849B 14 Eri 2018-01-27 14+Eri 14 Eridani is a star in the equatorial Eridanus constellation. It has an apparent visual magnitude of 6.143 and is moving closer to the Sun with a radial velocity of around −5 km/s. The measured annual parallax shift is 29.26 mas, which provides an estimated distance of about 121 light years. Proper motion studies indicate that this is an astrometric binary. The visible component has a stellar classification of F5 V Fe−0.7 CH−0.5, which indicates it has the spectrum of an F-type main-sequence star with mild underabundances of iron and methylidyne. It is 1.4 billion years old with 1.3 times the mass of the Sun and 1.5 times the Sun's radius. The star is radiating 3.87 times the luminosity of the Sun from its photosphere at an effective temperature of 6,719 K. The system has been detected as a source of X-ray emission. References 5166645550267371776 5166645550267371776 XHIP: An extended hipparcos compilation Anderson E. Francis Ch. Astronomy Letters 38 5 331 2012 2012AstL...38..331A 10.1134/S1063773712050015 1108.4971 119257644 . The Tycho-2 catalogue of the 2.5 million brightest stars Astronomy and Astrophysics 1 Høg E. Fabricius C. Makarov V. V. Urban S. Corbin T. Wycoff G. Bastian U. Schwekendiek P. Wicenec A. 355 L27 2000 . 2000A&A...355L..27H 10.1888/0333750888/2862 The ROSAT all-sky survey catalogue of optically bright main-sequence stars and subgiant stars 1 Huensch M. Schmitt J. H. M. M. Voges W. Astronomy and Astrophysics Supplement . 132 2 155−171 October 1998 10.1051/aas:1998287 1998A&AS..132..155H free Makarov V. V. Kaplan G. H. Statistical Constraints for Astrometric Binaries with Nonlinear Motion The Astronomical Journal . 129 5 2420–2427 May 2005 10.1086/429590 2005AJ....129.2420M free 1 Frankowski A. Jancart S. Jorissen A. Proper-motion binaries in the Hipparcos catalogue. Comparison with radial velocity data Astronomy and Astrophysics 464 1 377–392 March 2007 10.1051/0004-6361:20065526 2007A&A...464..377F astro-ph/0612449 14010423 . 1 Casagrande L. Schönrich R. Asplund M. Cassisi S. Ramírez I. Meléndez J. Bensby T. Feltzing S. New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey Astronomy and Astrophysics 530 A138 June 2011 10.1051/0004-6361/201016276 2011A&A...530A.138C 1103.4651 56118016 . de Bruijne J. H. J. Eilers A.-C. Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project Astronomy & Astrophysics 546 A61 14 October 2012 10.1051/0004-6361/201219219 2012A&A...546A..61D 1208.3048 59451347 . 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 . Gray R. O. Corbally C. J. Garrison R. F. McFadden M. T. Bubar E. J. McGahee C. E. O'Donoghue A. A. Knox E. R. Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample The Astronomical Journal 1 132 1 161–170 2006 10.1086/504637 2006AJ....132..161G astro-ph/0603770 119476992 . Category:Eridanus (constellation) Category:Durchmusterung objects Eridani, 14 020395 015244 0988 Category:Astrometric binaries Category:F5V stars