14 Herculis

Star in the constellation Hercules 14 Herculis J2000.0 Hercules 16 10 24.31568 +43 49 03.5074 +6.61 K0 V 0.877 0.006 −13.87 0.08 131.745 (28) −297.025 (37) 55.8657 0.0291 +5.39 0.98 0.04 0.97 0.02 0.6256 0.0077 4.46 commas 5310 30 0.43 0.07 3.6 2.0 1.65 29.5 d 14 Her +44°2549 614 145675 79248 45933 1481614 Her 2018-02-18 HD+145675 HD-145675 14 Herculis or 14 Her is a K-type main-sequence star 58.4 ly pc on off away in the constellation Hercules. It is also known as HD 145675. Because of its apparent magnitude, of 6.61 the star can be very faintly seen with the naked eye. As of 2021, 14 Herculis is known to host two exoplanets. Stellar properties 14 Herculis is an orange dwarf star of the spectral type K0V. The star has about 98 percent of the mass, 97 percent of the radius, and only 67 percent of the luminosity of the Sun. The star appears to be 2.7 times as enriched with elements heavier than hydrogen (based on its abundance of iron), in comparison to the Sun. It may have been the most metal rich star known as of 2001.S. Feltzing and G. Gonzalez, "The nature of super-metal-rich stars* Detailed abundance analysis of 8 super-metal-rich star candidates", 2001 Planetary system In 1998 a planet, 14 Herculis b was discovered orbiting 14 Herculis via radial velocity.Mayor, M. Searching for giant planets at the Haute-Provence Observatory IAU Colloqu. 170 Precise Stellar Radial Velocities Hearnshaw, J. B. Scarfe, C. D. 1998 ASP San Francisco etal This was formally published in 2003. The planet has an eccentric orbit with a period of 4.8 years. In 2005, a possible second planet was proposed, designated 14 Herculis c. The parameters of this planet were very uncertain, but an initial analysis suggested that it was in the 4:1 resonance with the inner planet, with an orbital period of almost 19 years at an orbital distance of 6.9 AU. The existence of the planet 14 Herculis c was confirmed in 2021, along with a rough orbit determination. A 2021 study combining radial velocity and astrometry found that the planetary orbits are not coplanar, which may indicate a strong planet-planet scattering event in the past. Albeit one study using astrometry has found inclinations consistent with aligned orbits, newer research including James Webb Space Telescope observations confirm the orbits are misaligned. The planets are strongly interacting with each other. Their inclinations and eccentricities oscillate due to these gravitational interactions. There are signs of a third candidate planet with a period of about 10 years, but this signal is most likely related to the star's magnetic activity cycle. The outer planet, 14 Herculis c, was directly imaged with the James Webb Space Telescope, re-determining its orbital elements and finding a temperature of 275 K C in, among the lowest known for a directly imaged planet. Its apparent brightness is fainter than expected, hinting at disequilibrium chemistry and/or water ice clouds. b 8.9 1.1 1.5 4.8285 0.0022 0.0023 2.84 0.04 0.371 0.003 147.3 2.2 2.7 c 7.9 1.6 1.2 143 3 28.1 6.4 6.8 0.64 0.06 0.10 111.9 5.4 4.5 1.03 0.01 See also 47 Ursae Majoris List of stars in Hercules References 1385293808145621504 Bardalez Gagliuffi Daniella Balmer William O. etal June 2025 JWST Coronagraphic Images of 14 Her c: a Cold Giant Planet in a Dynamically Hot, Multi-planet System The Astrophysical Journal Letters 988 1 L18 10.3847/2041-8213/ade30f free 2506.09201 2025ApJ...988L..18B Stellar diameters and temperatures - V. 11 newly characterized exoplanet host stars von Braun Kaspar Boyajian Tabetha S. van Belle Gerard T. Kane Stephen R. Jones Jeremy Farrington Chris Schaefer Gail Vargas Norm Scott Nic ten Brummelaar Theo A. Kephart Miranda Gies Douglas R. Ciardi David R. López-Morales Mercedes Mazingue Cassidy McAlister Harold A. Ridgway Stephen Goldfinger P. J. Turner Nils H. Sturmann Laszlo 1 Monthly Notices of the Royal Astronomical Society 438 3 2413–2425 2014 1312.1792 2014MNRAS.438.2413V 10.1093/mnras/stt2360 free Bonfanti A. Ortolani S. Piotto G. Nascimbeni V. Revising the ages of planet-hosting stars Astronomy & Astrophysics 1 575 A18 17 2015 10.1051/0004-6361/201424951 free 2015A&A...575A..18B 1411.4302 54555839 XHIP: An extended hipparcos compilation Anderson E. Francis Ch. Astronomy Letters 38 5 331 2012 2012AstL...38..331A 10.1134/S1063773712050015 1108.4971 119257644 2506.13580 Xiao Guang-Yao Feng Fabo Updated Mutual Inclination Measurement for 14 Her b and C Research Notes of the AAS 2025 9 7 187 10.3847/2515-5172/adef49 2025RNAAS...9..187X free Bardalez Gagliuffi Daniella C. Daniella Bardalez Gagliuffi Faherty Jacqueline K. Li Yiting Brandt Timothy D. Williams Lauryn Brandt G. Mirek Gelino Christopher R. 1 14 Her: A Likely Case of Planet–Planet Scattering The Astrophysical Journal Letters 1 December 2021 922 2 L43 2111.06004 2021ApJ...922L..43B free 10.3847/2041-8213/ac382c free The Perkins catalog of revised MK types for the cooler stars Keenan Philip C. McNeil Raymond C. Astrophysical Journal Supplement Series 71 245 1989 1989ApJS...71..245K 10.1086/191373 14 Herculis: A NEW EXTRASOLAR PLANET DISCOVERED AT THE HAUTE PROVENCE OBSERVATORY Elisabeth Teichmann 1998-07-06 L'Observatoire de Haute-Provence France http://www.obs-hp.fr/www/nouvelles/14her.html 2022-01-01 2007-07-02 https://web.archive.org/web/20070702080213/http://www.obs-hp.fr/www/nouvelles/14her.html dead Feng Fabo Xiao Guang-Yao Jones Hugh R A Jenkins James S Pena Pablo Sun Qinghui 2024-12-19 Lessons learned from the detection of wide companions by radial velocity and astrometry Monthly Notices of the Royal Astronomical Society 539 4 3180–3200 10.1093/mnras/staf689 free 2412.14542 0035-8711 1 Robert A. Wittenmyer Endl Michael Cochran William D. January 2007 Long-Period Objects in the Extrasolar Planetary Systems 47 Ursae Majoris and 14 Herculis The Astrophysical Journal 654 1 625–632 astro-ph/0609117 2007ApJ...654..625W free 10.1086/509110 free 14707902 Goździewski, K. Konacki, M. Maciejewski, A. J. Orbital Configurations and Dynamical Stability of Multiplanet Systems around Sun-like Stars HD 202206, 14 Herculis, HD 37124, and HD 108874 The Astrophysical Journal 645 1 688–703 2006 2006ApJ...645..688G 10.1086/504030 astro-ph/0511463 15012577 http://authors.library.caltech.edu/5547/1/GOZapj06.pdf 2105.11583 2021 The California Legacy Survey. I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades Rosenthal Lee J. Fulton Benjamin J. Hirsch Lea A. Isaacson Howard T. Howard Andrew W. Dedrick Cayla M. Sherstyuk Ilya A. Blunt Sarah C. Petigura Erik A. Knutson Heather A. Behmard Aida Chontos Ashley Crepp Justin R. Crossfield Ian J. M. Dalba Paul A. Fischer Debra A. Henry Gregory W. Kane Stephen R. Kosiarek Molly Marcy Geoffrey W. Rubenzahl Ryan A. Weiss Lauren M. Wright Jason T. The Astrophysical Journal Supplement Series 255 1 8 10.3847/1538-4365/abe23c 2021ApJS..255....8R 235186973 free Feng Fabo Butler R. Paul etal August 2022 3D Selection of 167 Substellar Companions to Nearby Stars The Astrophysical Journal Supplement Series 262 21 21 10.3847/1538-4365/ac7e57 2208.12720 2022ApJS..262...21F 251864022 free Butler R. Paul etal January 2003 Seven New Keck Planets Orbiting G and K Dwarfs The Astrophysical Journal 582 1 455–466 10.1086/344570 2003ApJ...582..455B free Benedict G. F. McArthur B. E. etal May 2023 The 14 Her Planetary System: Companion Masses and Architecture from Radial Velocities and Astrometry The Astronomical Journal 166 1 27 10.3847/1538-3881/acd93a 2305.11753 2023AJ....166...27B free External links http://www.solstation.com/stars2/14her.htm https://web.archive.org/web/20020616012524/http://solstation.com/stars2/14her.htm dead June 16, 2002 14 Herculis 2008-06-25 SolStation http://planetquest1.jpl.nasa.gov/atlas/atlas_search.cfm New Worlds Atlas 2008-06-25 Jet Propulsion Laboratory Planet Quest https://web.archive.org/web/20080612100938/http://planetquest1.jpl.nasa.gov/atlas/atlas_search.cfm 12 June 2008 dead https://exoplanet.eu/catalog/14_her_b--77/ Planet 14 Her b Jean Schneider 2021 Extrasolar Planets Encyclopaedia 2021-01-01 16 10 24.31 + 43 49 3.5 59 Herculis, 014 Category:Hercules (constellation) 145675 079248 0614 BD+44 2549 Category:K0V stars Category:Planetary systems with two confirmed planets Category:Population I stars