翻訳と辞書
Words near each other
・ Hip (slang)
・ HIP 100963
・ HIP 116454 b
・ HIP 11915
・ HIP 11915 b
・ HIP 11952
・ HIP 12961
・ HIP 13044
・ HIP 14810
・ HIP 14810 b
・ HIP 14810 c
・ HIP 14810 d
・ HIP 5158
・ HIP 5158 b
・ HIP 5158 c
HIP 56948
・ HIP 57050
・ HIP 57274
・ HIP 70849
・ HIP 70849 b
・ HIP 78530 b
・ HIP 79431
・ HIP 79431 b
・ HIP 85605
・ Hip and buttock padding
・ Hip arthroscopy
・ Hip bone
・ Hip boot
・ Hip Cake Walk
・ Hip Club Groove


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HIP 56948 : ウィキペディア英語版
HIP 56948


HIP 56948 (also known as HD 101364) is a solar twin star of type G5V.〔 It is the most sun-like star yet known in terms of size, mass, temperature, chemical makeup and, arguably, age. Our sun is about 4.6 billion years old, and HIP 56948 is believed to be about a billion years older—so both stars are between a third and a halfway through their life on the main sequence.〔〔

It is 208 light years away in the constellation of Draco,〔
〕 lying about halfway between Polaris and Dubhe on the celestial sphere.〔(The Telegraph ), retrieved 5 November 2010.〕 Astronomers have looked for planets in the system, so far without finding any. These observations suggest that the star does not have any hot Jupiters.〔(New Scientist ), retrieved 5 October 2009.〕
==Discovery==
Jorge Meléndez of the Australian National University and Iván Ramírez of the University of Texas analysed the star in 2007 using the 2.7 metre Harlan J. Smith telescope at McDonald Observatory.〔


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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