Assertion: proper distance | /r/HasProperty | two related distance measures
Facets:
value: in standard cosmology
type: OTHER
value: closely
type: DEGREE
Source sentences:
text: In standard cosmology, comoving distance and proper distance are two closely related distance measures used by cosmologists to measure distances between objects; the comoving distance is the proper distance at the present time.
text: In standard cosmology, comoving distance and proper distance are two closely related distance measures used by cosmologists to define distances between objects.