13590598-n
'the ratio of the speed of recession of a galaxy (due to the expansion of the universe) to its distance from the observer';
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汉语
哈勃常数
,
哈勃 常数
英语
Hubble's constant
,
Hubble constant
,
Hubble's parameter
,
Hubble parameter
日语
ハッブルパラメータ
,
ハッブル定数
Definitions
日语
観察者からの距離に対する、(宇宙の膨張による)銀河の後退速度の割合
ハッブル定数は実際には定数ではなく、現在の膨張率を測定しているとみなされている
英语
the ratio of the speed of recession of a galaxy (due to the expansion of the universe) to its distance from the observer
the Hubble constant is not actually a constant, but is regarded as measuring the expansion rate today
Relations
Hypernym:
constant
Domain–Category:
cosmology
Semantic Field:
quantity
n
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