HD 154345 b

Database links to HD 154345 b

Exoplanet HD 154345 b

Artist's impression of HD 154345b with a hypothetical moon
Constellation	Hercules
Position equinox : J2000.0
Right ascension	17h 02m 36.40360s
declination	+ 47 ° 04 ′ 54.7641 ″
Orbit data
Central star	HD 154345
Major semi-axis	4.19 AU
eccentricity	0.044 ± 0.046
Period of circulation	3342 ± 95,000 d
Further data
Minimum dimensions	0.947 ± 0.090 M _J
distance	18.06 pc
history
discovery	Wright et al.
Date of discovery	2006
Catalog names
HD 154345 b, HIP 83389 b

HD 154345 b is an exoplanet orbiting the yellow dwarf HD 154345 in the constellation Hercules , about 59 light years from the Sun.

discovery

The planet was discovered in 2006 by a team of astronomers led by Jason T. Wright using the radial velocity method and the discovery was announced in early 2007. It was based on observations at the Keck Observatory in Hawaii . HD 154345 b was one of the first exoplanets to be classified as analogous to Jupiter .

properties

According to the model calculation of the discovery team, HD 154345 b has a minimum mass of approximately one mass of Jupiter and needs a little more than nine years to orbit its central star. Its major orbit half-axis is approximately 4.2 AU , with the orbit being almost circular. HD 154345 b therefore shows a great similarity to the planet Jupiter in the solar system in terms of mass, orbital time and distance to the star . A more recent study from 2012, however, assumes a higher eccentricity of the planet's orbit.

Web links

The exoplanet in the "Encyclopedia of Extrasolar Planets"

Individual evidence

↑ SIMBAD: HD 154345. Retrieved December 6, 2015 .
↑ ^a ^b ^c ^d ^e NASA Exoplanet Archive: HD 154345 b. Retrieved December 6, 2015 .
^ Wright, JT, Marcy, GW, Fischer, DA, et al .: Four New Exoplanets and Hints of Additional Substellar Companions to Exoplanet Host Stars . 2007, doi : 10.1086 / 510553 , arxiv : astro-ph / 0611658 .
↑ ^a ^b Wright, JT et al .: The Jupiter Twin HD 154345b . July 23, 2008, doi : 10.1086 / 587461 , arxiv : 0802.1731 .
^ I. Boisse et al .: The SOPHIE search for northern extrasolar planets. V. Follow-up of ELODIE candidates: Jupiter-analogs around Sun-like stars . September 2012, doi : 10.1051 / 0004-6361 / 201118419 , arxiv : 1205.5835 .

[1] SIMBAD: HD 154345. Retrieved December 6, 2015 .

[NASA-2] NASA Exoplanet Archive: HD 154345 b. Retrieved December 6, 2015 .

[3] Wright, JT, Marcy, GW, Fischer, DA, et al .: Four New Exoplanets and Hints of Additional Substellar Companions to Exoplanet Host Stars . 2007, doi : 10.1086 / 510553 , arxiv : astro-ph / 0611658 .

[Wright-4] Wright, JT et al .: The Jupiter Twin HD 154345b . July 23, 2008, doi : 10.1086 / 587461 , arxiv : 0802.1731 .

[5] I. Boisse et al .: The SOPHIE search for northern extrasolar planets. V. Follow-up of ELODIE candidates: Jupiter-analogs around Sun-like stars . September 2012, doi : 10.1051 / 0004-6361 / 201118419 , arxiv : 1205.5835 .