HAT-P-11b 是一颗类似海王星的系外行星,距离地球 122 光年,它的大小与海王星相似,但轨道更靠近其恒星,因此被称为“热海王星”。尽管 HAT-P-11b 的直径约为地球的 4 倍,但其质量仅为地球的 26%。#微博知识+# û收藏 12 2 ñ28 评论 o p 同时转发到我的微博 按热度 按时间...
HAT-P-11b: Smallest Exoplanet With Water Vapor FoundNews Staff
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HAT-P-11b is an extrasolar planet orbiting the star HAT-P-11. This planet was discovered by the transit method and submitted for publication on January 2, 2009. This planet is located approximately 123 light-years away in the constellation of Cygnus, orbiting the 10th magnitude K-type star ...
This lack of confirmation leaves us with the possibility of either a variable planetary emission, or a chance occurrence of a false positive signal in our first observation. Deeper observations are required to confirm this hint of 150 MHz radio emission from HAT-P-11b. 展开 ...
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HAT-P-11b,美国马里兰大学等机构研究人员24日在英国《自然》杂志上报告说,这颗编号为HAT-P-11b的行星位于天鹅座中,距地球约120光年。它几乎是一个克隆版的海王星:个头是地球的4倍大,也可能有着固态的核,外面覆盖着大气层。
HAT-P-11b orbits the bright (V?= 9.587) and metal rich ([Fe/H] = +0.31 ± 0.05) K4 dwarf star GSC 03561-02092 with P = 4.8878162 ± 0.0000071?days and produces a transit signal with depth of 4.2?mmag, the shallowest found by transit searches that is due to a confirmed planet....
WASP-11b/HAT-P-10b is an extrasolar planet discovered in 2008. The discovery was announced (under the designation WASP-11b) by press release by the SuperWASP project in April 2008 along with planets WASP-6b through to WASP-15b, however at this stage more data was needed to confirm the ...