exoplanet_descriptions/hd_40307_d.txt Rimethi-sida (HD 40307 d) - Astro
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Info for exoplanet "Rimethi-sida"


Scientific (actual) data
NameHD 40307 d
Planet statusConfirmed
Mass sini0.0275
Orbital period20.412
Semi major axis0.134
Orbit eccentricity0.07
Angular distance0.010469
Discovered2008
Updated2019-02-13
Omega17
Tzero vr54532.4
K2.31
PublicationPublished in a refereed paper
Detection typeRadial Velocity
Mass measurement typeRadial Velocity
Star nameHD 40307
Right ascension88.52°
Declination-60.02°
Mag v7.17
Mag j5.41
Mag h4.97
Mag k4.79
Star distance12.8
Star metallicity-0.31
Star mass0.77
Star sp typeK2.5V
Star temperature4977
Star detected discIR Excess
Wikipedia articleHD 40307 d

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Fictional info (?)
Suggested nameRimethi-sida
Planet typePlanet
It has the longest rotation period (445 days) of any planet in its solar system and rotates in the opposite direction to most other planets.
AtmosphereOzone66%
Water vapor28%
Ethane3.3%
Sulfur dioxide1.9%
Oxygen0.087%
Nitric oxide0.071%
Carbonyl sulfide0.012%
Atmospheric pressure10 bar
artist's rendition
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