Assertion: comet's magnitude | /r/HasProperty | apparent
Facets:
Source sentences:
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: As of September 2015 the comet is around apparent magnitude 6.
text: By early May 2015 the comet was around apparent magnitude 12 and had an elongation of 60 degrees from the Sun as it moved further into the southern hemisphere.
text: During the November 2013 perihelion passage the comet is expected to brighten to apparent magnitude 7.
text: The comet was then near perihelion and its apparent magnitude was estimated to be around 2.