Assertion: comet | /r/CapableOf | become bright
Facets:
value: approximately once a decade
type: TEMPORAL
value: about every decade or so
type: TEMPORAL
value: in late-november
type: TEMPORAL
value: for telescopic viewing
type: PURPOSE
value: more rarely
type: DEGREE
Source sentences:
text: Approximately once a decade, a comet becomes bright enough to be noticed by a casual observer, leading such comets to be designated as great comets.
text: Approximately once a decade, a comet becomes bright enough to be noticed by a casual observer, leading such comets to be designated as great comets.
text: However, occasionally a comet may brighten to naked eye visibility, and even more rarely it may become as bright as or brighter than the brightest stars.
text: In late-November 2012, the comet became bright enough for telescopic viewing, and had an apparent magnitude estimated at +9 by the year's end.
text: About every decade or so, a comet will become bright enough to be noticed by a casual observer—such comets are often designated Great Comets.
text: Approximately once a decade, a comet becomes bright enough to be noticed by a casual observer, leading such comets to be designated as great comets.