Assertion: period comet | /r/HasProperty | faint
Facets:
value: very
type: DEGREE
Source sentences:
text: Since the threat from long-period NECs is estimated to be at most 1% of the threat from NEAs, and long-period comets are very faint and thus difficult to detect at large distances from the Sun, Spaceguard efforts consistently focused on asteroids and short-period comets.
text: Since the threat from long-period NECs is estimated to be at most 1% of the threat from NEAs, and long-period comets are very faint and thus difficult to detect at large distances from the Sun, Spaceguard efforts consistently focused on asteroids and short-period comets.