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Gliese 436 b / ˈ ɡ l iː z ə / (sometimes called GJ 436 b, [7] formally named Awohali [2]) is a Neptune-sized exoplanet orbiting the red dwarf Gliese 436. [1] It was the first hot Neptune discovered with certainty (in 2007) and was among the smallest-known transiting planets in mass and radius, until the much smaller Kepler exoplanet discoveries began circa 2010.
A hot Neptune is a type of giant planet with a mass similar to that of Neptune or Uranus orbiting close to its star, normally within less than 1 AU. [1] The first hot Neptune to be discovered with certainty was Gliese 436 b (Awohali) in 2007, an exoplanet about 33 light years away.
The relative "hot spot" is due to Neptune's axial tilt, which has exposed the south pole to the Sun for the last quarter of Neptune's year, or roughly 40 Earth years. As Neptune slowly moves towards the opposite side of the Sun, the south pole will be darkened and the north pole illuminated, causing the methane release to shift to the north pole.
GJ 3470 b (occasionally Gliese 3470 b, formally named Phailinsiam [2]) is an exoplanet orbiting the star GJ 3470, located in the constellation Cancer.With a mass of just under 14 Earth-masses, a radius approximately 4.3 times that of Earth's, and a high equilibrium temperature of 615 K (342 °C; 647 °F), [4] it is a hot Neptune.
53 K mean of Neptune; 63 K, ... Fahrenheit Condition 100 K: −173.15 °C: −279.67 °F ... Maximum standard temperature recommended for hot tub users [39] [full ...
The following outline is provided as an overview of and topical guide to Neptune: . Neptune – eighth and farthest known planet from the Sun in the Solar System.In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet.
Neptune, on the other hand, is the planet of dreams, intuition, and imagination. When it transits the all-encompassing sign of Pisces , it is home, making this mystical transit all the more ...
Being in the Neptunian desert, LTT 9779 b is a very rare class of planet, with few like it being known. It is estimated that only 1 in 200 Sun-like stars possess a planet with an orbital period of less than a day, [ 2 ] and most of those are Hot Jupiters or rocky planets , with ultra-hot Neptune planets being rare. [ 2 ]