From the naked eye, 95 Herculis appears as a single star shining atapparent magnitude 4.31. However, when further scrutinized using a telescope, it is revealed to be a double star, with two components separated by 6.3arcseconds. This system has acolor contrast due to the difference of each star's effective temperature.[5]
The secondary is called 95 Herculis B, a yellow giant[6] of apparent magnitude 5.1.[4] It is the most evolved star in the pair, having reached the helium burning stage, while 95 Herculis A is still in the transition from hydrogen burning to helium burning.[6] Albeit fainter than 95 Her A, 95 Her B emits a significant part of its luminosity in theinfrared, and hence thebolometric luminosity is 172 times solar. It is 3.2 times more massive than the Sun and 16.5 times wider. The effective temperature of the star is5,037 K.
Theorbital elements of 95 Herculis are not accurately known and no orbital motion has been detected. However, theirprojected separation is calculated at 900 astronomical units, with an orbital period of at least 11,000 years.[5]
^abcKordopatis, G.; Schultheis, M.; McMillan, P. J.; Palicio, P. A.; De Laverny, P.; Recio-Blanco, A.; Creevey, O.; Álvarez, M. A.; Andrae, R.; Poggio, E.; Spitoni, E.; Contursi, G.; Zhao, H.; Oreshina-Slezak, I.; Ordenovic, C.; Bijaoui, A. (2023). "Stellar ages, masses, extinctions, and orbital parameters based on spectroscopic parameters of Gaia DR3".Astronomy and Astrophysics.669: A104.arXiv:2206.07937.Bibcode:2023A&A...669A.104K.doi:10.1051/0004-6361/202244283.
^De Medeiros, J. R.; do Nascimento, J. D., Jr.; Sankarankutty, S.; Costa, J. M.; Maia, M. R. G. (2000). "Rotation and lithium in single giant stars".Astronomy and Astrophysics.363: 239.arXiv:astro-ph/0010273.Bibcode:2000A&A...363..239D.{{cite journal}}: CS1 maint: multiple names: authors list (link)
