
GJ 436 b - Science@NASA
2024年10月24日 · GJ 436 b is a Neptune-like exoplanet that orbits a M-type star. Its mass is 22.1 Earths, it takes 2.6 days to complete one orbit of its star, and is 0.0291 AU from its star. Its discovery was announced in 2004.
Gliese 436 - Wikipedia
Gliese 436 is a red dwarf located 31.9 light-years (9.8 parsecs) away in the zodiac constellation of Leo. It has an apparent visual magnitude of 10.67, [3] which is much too faint to be seen with the naked eye. However, it can be viewed with even a modest telescope of 2.4 in …
Gliese 436 b - Wikipedia
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 ...
格利泽436 - 维基百科,自由的百科全书
格利泽436是一颗距离地球33光年,位于狮子座的红矮星。 在2004年,证实有 系外行星 在轨道上绕行。 有迹象显示在系统中可能有更多低质量的行星,但尚待确认。
GJ 436 | NASA Exoplanet Archive
High cadence near infrared timing observations of extrasolar planets. I. GJ 436b and XO-1b. The Palomar/MSU nearby star spectroscopic survey. II. The southern M dwarfs and investigations of magnetic activity.
格利泽436b - 维基百科,自由的百科全书
2022年1月26日 · 格利泽436b (英语: Gliese 436 b, / ˈɡliːzə /)是一个环绕 格利泽436 的 系外 气态巨行星,其大小与 海王星 差不多。 由于离母恒星非常的近,故其表面温度很高,达712 K(439 °C)。 有趣的是,虽然格利泽436b的表面温度极高,但是其内部 气压 非常大,因此其表面上的水蒸气会凝结成 冰 或 水。 [6] 格利泽436b是于2004年8月被华盛顿卡内基研究所的 R·保罗·巴特勒 (英语:R. Paul Butler) 和 加州大学 的 史蒂文·沃格特 发现,他们是使用 径向速度 …
TEPCat: GJ 436 - Keele University
This page summarises the information held within TEPCat for the transiting planetary system GJ 436. Please see here for descriptions of the quantities given below. Discovery and basic observable quantities:
GJ436b - Where's the methane? - UCF Planetary Sciences Group
Around a relatively small M-dwarf star, orbits the Neptune-sized planet GJ 436b. This extrasolar planet completes one revolution in just 2.64 days, following an elliptical path that takes it ~10 times closer to its parent star than Mercury’s orbit does to the Sun. Being in such a tight orbit, the planet is considered to be quite hot, with a ...
格利澤436b - 维基百科,自由的百科全书
格利泽436b (英語: Gliese 436 b, / ˈɡliːzə /)是一個環繞 格利泽436 的 系外 氣體巨行星,其大小與 海王星 差不多。 由於離母恆星非常的近,故其表面溫度很高,達712 K(439 °C)。 有趣的是,雖然格利泽436b的表面溫度極高,但是其內部 氣壓 非常大,因此其表面上的水蒸氣會凝結成 冰 或 水。 [6] 格利澤436b是於2004年8月被華盛頓卡內基研究所的 R·保羅·巴特勒 (英语:R. Paul Butler) 和 加州大學 的 史蒂文·沃格特 發現,他們是使用 徑向速度測量法 發現這顆行星的。 …
[1501.02711] On the GJ 436 planetary system - arXiv.org
2015年1月12日 · The orbital motion of the GJ 436 c planet candidate was found to be significantly affected by the planet b with variations in transit times at a level of 20 minutes. As the orbital period of the GJ 436 d planet candidate remains unknown, our numerical experiments rule out orbits in low-order resonances with GJ 436 b.