ι Leo, 78 Leonis, Gliese426.1(B:GJ11625)[11],BD+11°2348, HD 99028, HIP 55642, HR 4399, SAO 99587[2]
Database references
SIMBAD
data
Iota Leonis, Latinized from ι Leonis, is a triple star system in the constellation Leo. The system is fairly close to the Sun, at only 79 light-years (24.2 parsecs) away, based on its parallax.[1] The system has a combined apparent magnitude of 4.00[2] making it faintly visible to the naked eye. It is moving closer to the Sun with a radial velocity of −10 km/s.[6]
Iota Leonis has a spectral type of F3 IV,[3] matching that of an F-type subgiant star. It is a spectroscopic binary, which means it is a binary star with components that are too close together to be able to resolve individually through a telescope. In this case, light from only the primary star can be detected, and it is considered single-lined.[3]
The third component in the star system is designated Iota Leonis B. It orbits the central pair almost every 200 years, and with its perihelion passage in 1948, the separation between the two is steadily growing.[12] Iota Leonis B has a mass approximately 8% greater than that of the Sun.[12] It is a G-type main-sequence star, like the Sun.[13]
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^"Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. Archived from the original on 1 August 2017. Retrieved 13 May 2017.
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^ abFuhrmann, Klaus (2008). "Nearby stars of the Galactic disc and halo - IV". Monthly Notices of the Royal Astronomical Society. 384 (1): 173–224. Bibcode:2008MNRAS.384..173F. doi:10.1111/j.1365-2966.2007.12671.x.
^"BD+11 2348B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 9 May 2017.
IotaLeonis, Latinized from ι Leonis, is a triple star system in the constellation Leo. The system is fairly close to the Sun, at only 79 light-years (24...
Theta Leonis, Latinized from θ Leonis, formally named Chertan, is a star in the constellation of Leo. With an apparent visual magnitude of +3.324 it is...
to an asterism consisting of Beta Virginis, Sigma Leonis, IotaLeonis, Theta Leonis and Delta Leonis. Consequently, the Chinese name for Beta Virginis...
of Right Wall IotaLeonis 西次將 Xī Cì Jiāng The Second Western General 太微右垣四 Tài Wēi Yòu Yuán sì the Fourth Star of Right Wall Theta Leonis Chertan 西次相 Xī...
Omicron Leonis Binary star system 3.53 Epsilon Tauri Star 3.53 Mu Serpentis Binary star system 3.53 Delta Geminorum Triple star system 3.54 Iota Cephei...
stars found that 75% of the Mira stars which could be resolved using the IOTA telescope are not spherically symmetric, a result which is consistent with...
L. -H. (2008). "Seismological Analysis of the Stars γ Serpentis and ι Leonis: Stellar Parameters and Evolution". The Astrophysical Journal. 673 (2):...
in this multiple star system thus far. Epsilon Indi Gliese 229 HD 188753 Iota Horologii Phi2 Pavonis From L=4πR2σTeff4, where L is the luminosity, R is...
(September 2000). "Coordinated monitoring of the eccentric O-star binary Iota Orionis: optical spectroscopy and photometry". Monthly Notices of the Royal...
A.P.; Kim, K.-M. (2014). "Planetary Companions in K giants β Cancri, μ Leonis, and β Ursae Minoris". Astronomy and Astrophysics. 566: 7. arXiv:1405.2127...
21 confirmed and 139 candidates. The most massive confirmed exoplanet is Iota Draconis b, which masses 9.40 MJ (i.e. 9.4 times the mass of Jupiter); the...
Taner (2013). "Elemental abundances of the supergiant stars σ Cygnus and η Leonis". New Astronomy. 25: 50. arXiv:1512.04557. Bibcode:2013NewA...25...50T....
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