hubble's constant   (TTS Sound)

The hubble's_constant has 1 Senses.

• hubble's constant, hubble parameter, hubble constant, hubble's parameter
• ハッブルパラメータ, ハッブル定数
• (cosmology) 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
• 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