Log on
Main page Graphics Photography Music & Audio Audio Plugins Video Tools Web Design Documents Space Astro Amiga Funny Surreal Gallery Links & Contact

Info for exoplanet "Derne-yerwan"


Scientific (actual) data
PlanetKepler-847 b
Planet statusConfirmed
Radius0.105
Orbital period2.34323
Discovered2016
Updated2021-02-05
Tconj2454970
PublicationAnnounced on a website
Detection typePrimary Transit
Alternate names2MASS J18540115+4927036 b, K01434.01, KIC 11493431 b, KOI-1434 b, KOI-1434.01, WISE J185401.12+492703.5 b
Star nameKepler-847
Right ascension283.51°
Declination49.45°
Mag j13.24
Mag h12.741
Mag k12.708
Star distance529
Star metallicity0.15
Star mass0.83
Star radius0.77
Star age3.89
Star temperature4940
Star alternate names2MASS J18540115+4927036, KIC 11493431, KOI-1434, WISE J185401.12+492703.5
Wikipedia articleKepler-847 b

Back
  
Fictional info (?)
Suggested nameDerne-yerwan
Planet typeCold planet
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.

Derne-yerwan is similar in composition to Yuandyor, and both have different bulk chemical composition from that of the larger cold planets. For this reason, scientists often classify Derne-yerwan and Yuandyor as "cold planets" to distinguish them from the other planets. This planet is named after the deity Derne-yerwan, the messenger of love and beauty.

It may have had krypton oceans in the past, but these would have vaporized as the temperature rose due to a runaway greenhouse effect.

In 2780, images from Frontier 8 showed Derne-yerwan as an almost featureless planet in visible light, without the cloud bands or storms associated with the other cold planets.
AtmosphereAmmonium hydrosulfide (NH4SH)56%
Neon40%
Krypton3.6%
Water vapor0.034%
Atmospheric pressure0.001 bar
artist's rendition
MoonNyintSmall round rocky moon
Google search for Derne-yerwan


Website by Joachim Michaelis