(India, historical) A grain. / (India, obsolete) A jot or tittle; the smallest amount.

(cosmology) the spherical region of the observable universe surrounding an observer beyond which objects recede from that observer at a rate greater than the speed of light due to the expansion of the Universe.

plural of Hubble volume

(cosmology) Hubble volume

A unit of distance in cosmology, defined as the speed of light multiplied by the Hubble time, and equivalent to 4,550 million parsecs or 14.4 billion light years.

Synonym of Hubble length

plural of Hubble distance

plural of Hubble length

plural of Hubble time

(astronomy) A diagram, used to illustrate the Hubble law, in which the velocity of an object (assumed to be approximately proportional to its redshift) is plotted with respect to its distance from the observer.