106 Herculis

Binary star system in the constellation Hercules 250px A light curve for 106 Herculis, plotted from TESS data J2000 Hercules 18 20 17.91482 +21 57 40.6622 4.96 AGB M0 III +1.58 +1.98 suspected SR -35.20 0.29 +18.105 -59.631 8.5067 0.1739 −0.664 44.32 2.70 5.89 3789 6 commas 414.1 9.7 1.56 0.09 0.00 0.03 5.0 1.0 106 Her +21°3390 168720 89861 6868 85941 24405 106+Her 106 Herculis is a variable star in the northern constellation Hercules. It is visible to the naked eye as a faint, red-hued point of light with a baseline apparent visual magnitude of 4.96. Based on its parallax, it is estimated to lie 383 ly pc off away from the Sun. The star is moving closer to the Earth with a heliocentric radial velocity of -35 km/s. Eggleton and Tokovinin (2008) listed this as a suspected binary star system consisting of two roughly equal components. It appears as an ageing red giant with a stellar classification of M0III. This is a suspected semiregular variable star with a very small amplitude and a period of 40 days or more. Having exhausted the supply of hydrogen at its core, it has expanded to 44 times the Sun's radius. It is radiating around 414 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of about commas 3,789 K. References 106 Her 2019-06-17 4529690183608965504 MAST: Barbara A. Mikulski Archive for Space Telescopes https://mast.stsci.edu/portal/Mashup/Clients/Mast/Portal.html Space Telescope Science Institute 27 November 2023 1993PASP..105.1422P 10.1086/133324 The photometric variability of K giants Publications of the Astronomical Society of the Pacific 105 1422 1993 Percy John R. free 2009yCat....102025S VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013) VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S 1 B/GCVS etal Samus N. N. Durlevich O. V. 2009 Ducati J. R. VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system CDS/ADC Collection of Electronic Catalogues 2237 2002 2002yCat.2237....0D Mermilliod J.-C. Compilation of Eggen's UBV data, transformed to UBV (unpublished) Catalogue of Eggen's UBV Data 1986 1986EgUBV........0M Soubiran C. Bienaymé O. Mishenina T. V. Kovtyukh V. V. Vertical distribution of Galactic disk stars Astronomy & Astrophysics 480 91–101 2008 1 2008A&A...480...91S 0712.1370 10.1051/0004-6361:20078788 free 16602121 1 Wu Yue Singh H. P. Prugniel P. Gupta R. Koleva M. Coudé-feed stellar spectral library – atmospheric parameters Astronomy & Astrophysics 525 A71 2010 2011A&A...525A..71W 1009.1491 10.1051/0004-6361/201015014 free 53480665 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 1 Rotational velocities of the giants in symbiotic stars - III. Evidence of fast rotation in S-type symbiotics Zamanov R. K. Bode M. F. Melo C. H. F. Stateva I. K. Bachev R. Gomboc A. Konstantinova-Antova R. Stoyanov K. A. Monthly Notices of the Royal Astronomical Society 390 1 377–382 October 2008 10.1111/j.1365-2966.2008.13751.x free 2008MNRAS.390..377Z 0807.3817 118697261 Guerrero Martín A. Ortiz Roberto The effect of pulsation on the near-ultraviolet spectrum of AGB stars Monthly Notices of the Royal Astronomical Society 2020 491 1 680 10.1093/mnras/stz2966 free 2020MNRAS.491..680G Category:M-type giants Category:Semiregular variable stars Category:Hercules (constellation) Category:Durchmusterung objects Herculis, 106 168720 089861 6868 Category:Suspected variables