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Info for exoplanet "Detania"


Scientific (actual) data
PlanetKepler-439 b
Planet statusConfirmed
Radius0.2
Orbital period178.14
Semi major axis0.563
Orbit eccentricity0.03
Inclination89.95
Discovered2015
Updated2021-02-05
Tconj2455400
Tzero tr2455400
Impact parameter0.1
PublicationPublished in a refereed paper
Detection typePrimary Transit
Radius detection typePrimary Transit
Alternate names2MASS J18431237+4402023 b, K04005.01, KIC 8142787 b, KOI-4005 b, KOI-4005.01, WISE J184312.36+440202.2 b
Star nameKepler-439
Right ascension280.8°
Declination44.03°
Mag v15
Mag j13.344
Mag h12.955
Star distance693
Star metallicity0.02
Star mass0.88
Star radius0.87
Star age7.2
Star temperature5431
Star alternate names2MASS J18431237+4402023, KIC 8142787, KOI-4005, WISE J184312.36+440202.2
Wikipedia articleKepler-439 b

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Fictional info (?)
Suggested nameDetania
Planet typeCold planet
Its orbital period around Kepler-439 of 180 earth days is the longest of all the planets in its solar system.

The planet is named after the deity Detania, the demon of fear.

It may have had formaldehyde oceans in the past, but these would have vaporized as the temperature rose due to a runaway greenhouse effect. Detania's surface is a dry desertscape interspersed with slab-like rocks and is periodically resurfaced by volcanism.

As one of the most noticeable objects in the sky, Detania has been a major factor in native culture for as long as records have existed. It has been made sacred to gods of many alien species, and has been a huge inspiration for musicians, calling it the "summer god". Detania was one of the first planets to have its motions plotted across the sky - as early as the second millennium BC.

In 2780, images from Wayfinder 6 showed Detania as an almost featureless planet in visible light, without the cloud bands or storms associated with the other cold planets.
Atmosphere2H2O53%
Nitrogen18%
Formaldehyde17%
Ammonia9%
Sulfur dioxide2.4%
Atmospheric pressure0.0028 bar
artist's rendition
MoonAitgaronMedium-sized potato shaped ice moon
Thoneti-titayreLarge almost round rocky comet
Cudra RokuqHuge slightly egg-shaped rocky moon
Phaë TorirHuge irregular oceanic planetoid
Mnedeuces MeMedium-sized slightly egg-shaped rocky moon
LiaseteMedium-sized round ice moon
Lysiarraq ReMedium-sized almost round ice moon
Ciscopor-naqladeSmall round oceanic comet
Bercar LeneLarge slightly egg-shaped gaseous moon
Theebos NushylinVery small potato shaped rocky planetoid
Hethea PaidHuge almost round crater-filled planetoid
Uqmevos'gaeonLarge round ice moon
Ymircho-hoeLarge irregular crater-filled comet
Dysnis MeLarge round rocky asteroid
Google search for Detania


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