An artist's impression of the exoplanet HIP 11915 b.
Discovery
Discovered by
Meléndez et al.
Discovery site
La Silla Observatory, Chile
Discovery date
July 2015[1]
Detection method
HARPS
Orbital characteristics
Semi-major axis
4.8 ± 0.1[2] AU
Eccentricity
0.1 ± 0.070[2]
Orbital period (sidereal)
3830.0 ± 150[2] d 10.486[2] y
Star
HIP 11915
Physical characteristics
Mean radius
~1[3]RJ
Mass
0.99 ± 0.06[2]MJ (314.82 ME)
Temperature
118 K (−155 °C; −247 °F)
HIP 11915 b is an exoplanet orbiting the solar twin star HIP 11915 about 190 light-years (57 parsecs, or nearly 1.798×1015 km) from Earth in the constellation Cetus. It is notable as the first exoplanet to be discovered with an orbit and mass similar to that of Jupiter (essentially, a "Jupiter analog"), suggesting that its system may be similar to that of the Solar System.[1] It orbits its star at a distance of approximately 4.8 AU.[2] The exoplanet was found by using the radial velocity method, where periodic Doppler shifts of spectral lines of the host star suggest an orbiting object.
^ ab"Jupiter Twin Discovered Around Solar Twin". Retrieved 16 July 2015.
^ abcdef"Planet HIP 11915". Extrasolar Planets Encyclopaedia. Archived from the original on 26 January 2020. Retrieved 17 July 2015.
^"Discovery of Jupiter's twin points to Solar System 2". The Daily Telegraph. 20 July 2015. Retrieved 13 July 2016.
HIP11915b is an exoplanet orbiting the solar twin star HIP11915 about 190 light-years (57 parsecs, or nearly 1.798×1015 km) from Earth in the constellation...
HIP11915 is a G-type main-sequence star located about 190 light-years from Earth in the constellation Cetus. It is best known for its characteristics...
using the CalcTool luminosity converter. Using the apparent magnitude of HIP11915 and its distance from Earth (using the uncertainty parameter of ±10 light...
Ségransan, D; Smalley, B; Smith, A. M. S; Triaud, A. H. M. J; Udry, S; West, R. G (2016). "WASP-120 b, WASP-122 b, AND WASP-123 b: Three Newly Discovered...
drawback, with Gamma Cephei b being unconfirmed until 2002; while the PSR B1257+12 planets orbit a pulsar. This leaves 51 Pegasi b (discovered and confirmed...
component of a double star system designated WDS J01515-1020 (the secondary or 'B' component is HD 11366). Zeta Ceti's two components are therefore designated...
Machine, Hong Kong Space Museum. Accessed on line November 23, 2010. Garcia, B. (June 1989), "A list of MK standard stars", Bulletin d'Information du Centre...
Exoplanets 79 Ceti b 81 Ceti b 94 Ceti b BD−17 63 b HD 1461 b HD 2638 b HD 5319 b HD 11506 b c HD 11964 b c HD 224693 bHIP 5158 b c HIP11915b τ Ceti e f...
of an orbiting debris disk. The common proper motion companion, component B, is a G-type main sequence star with a classification of G3 V. It is a BY...
Exoplanets 79 Ceti b 81 Ceti b 94 Ceti b BD−17 63 b HD 1461 b HD 2638 b HD 5319 b HD 11506 b c HD 11964 b c HD 224693 bHIP 5158 b c HIP11915b τ Ceti e f...
Astronomy, University of Michigan, Bibcode:1988mcts.book.....H. Kaler, James B. (November 4, 2011), "Upsilon Ceti", Stars, University of Illinois, retrieved...
Exoplanets 79 Ceti b 81 Ceti b 94 Ceti b BD−17 63 b HD 1461 b HD 2638 b HD 5319 b HD 11506 b c HD 11964 b c HD 224693 bHIP 5158 b c HIP11915b τ Ceti e f...
the Sun and is estimated to be about four billion years old. In 1907, E. B. Frost discovered the primary is a spectroscopic binary, making this a triple...
Exoplanets 79 Ceti b 81 Ceti b 94 Ceti b BD−17 63 b HD 1461 b HD 2638 b HD 5319 b HD 11506 b c HD 11964 b c HD 224693 bHIP 5158 b c HIP11915b τ Ceti e f...
the galaxy are red giants. The Cetus Dwarf was discovered in 1999 by Alan B. Whiting, George Hau and Mike Irwin and was found to be a member of the Local...
1637L, doi:10.1111/j.1365-2966.2011.19826.x, S2CID 117788450. Knobel, E. B. (June 1895), "Al Achsasi Al Mouakket, on a catalogue of stars in the Calendarium...
Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357, S2CID 18759600. Lucke, P. B. (November 1974), "The OB stellar associations in the Large Magellanic Cloud"...
inclination and true mass of HD 70642 b were determined via astrometry. Gliese 777 HD 28185 Pi Mensae HIP11915 Lists of exoplanets Vallenari, A.; et al...
archived from the original on March 18, 2012, retrieved 2012-01-16 Campbell, B.; Cayrel, R. (August 1, 1984), "Spectroscopic evidence for starspots in the...
Exoplanets 79 Ceti b 81 Ceti b 94 Ceti b BD−17 63 b HD 1461 b HD 2638 b HD 5319 b HD 11506 b c HD 11964 b c HD 224693 bHIP 5158 b c HIP11915b τ Ceti e f...
stellar classification of F2 V. The spectrum of the secondary, component B, can not be readily separated from that of the primary, so its type can only...
Exoplanets 79 Ceti b 81 Ceti b 94 Ceti b BD−17 63 b HD 1461 b HD 2638 b HD 5319 b HD 11506 b c HD 11964 b c HD 224693 bHIP 5158 b c HIP11915b τ Ceti e f...
Exoplanets 79 Ceti b 81 Ceti b 94 Ceti b BD−17 63 b HD 1461 b HD 2638 b HD 5319 b HD 11506 b c HD 11964 b c HD 224693 bHIP 5158 b c HIP11915b τ Ceti e f...
Exoplanets 79 Ceti b 81 Ceti b 94 Ceti b BD−17 63 b HD 1461 b HD 2638 b HD 5319 b HD 11506 b c HD 11964 b c HD 224693 bHIP 5158 b c HIP11915b τ Ceti e f...
Exoplanets 79 Ceti b 81 Ceti b 94 Ceti b BD−17 63 b HD 1461 b HD 2638 b HD 5319 b HD 11506 b c HD 11964 b c HD 224693 bHIP 5158 b c HIP11915b τ Ceti e f...
Exoplanets 79 Ceti b 81 Ceti b 94 Ceti b BD−17 63 b HD 1461 b HD 2638 b HD 5319 b HD 11506 b c HD 11964 b c HD 224693 bHIP 5158 b c HIP11915b τ Ceti e f...
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