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Info for exoplanet "Vosnome"


Scientific (actual) data
PlanetHD 156411 b
Planet statusConfirmed
Mass sini0.74
Orbital period842.2
Semi major axis1.88
Orbit eccentricity0.22
Angular distance0.03412
Discovered2009
Updated2010-09-07
Omega43
Tperi4356
PublicationSubmitted to a professional journal
Detection typeRadial Velocity
Star nameHD 156411
Right ascension259.96°
Declination-48.55°
Mag v6.67
Star distance55.1
Star metallicity-0.12
Star mass1.25
Star radius2.16
Star sp typeF8IV/V
Star temperature5900
Wikipedia articleHD 156411 b

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Fictional info (?)
Suggested nameVosnome
Planet typeCold planet
It is the second-brightest natural object in the night sky after Fenliaq Pho, reaching an apparent magnitude of -5 - bright enough to cast shadows at night and, sometimes, visible to the naked eye in broad daylight.

The planet is named after the deity Vosnome, the creator of fear.

Having almost no atmosphere to retain heat, it has surface temperatures that vary diurnally more than on any other planet in its solar system, ranging from 175°K (-98°C) at night to 735°K (462°C) during the day across the equatorial regions.

It was the one of the first exoplanets visited by a spacecraft, and one of the first to be successfully landed on.

The rotational period and seasonal cycles of Vosnome are likewise similar to those of Fenliaq Pho, as is the tilt that produces the seasons.

The outer atmosphere is visibly segregated into several bands at different latitudes, resulting in turbulence and storms along their interacting boundaries.
AtmosphereFormaldehyde57%
2H2O42%
Hydrogen chloride0.072%
Atmospheric pressure5 bar
artist's rendition
No known satellites
Google search for Vosnome


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