Assertion: sunspot's temperature | /r/CapableOf | drop to about 4000 degrees
Facets:
value: in a big sunspot
type: LOCATION
Source sentences:
text: Most of the visible surface of the Sun has a temperature of about 5400 degrees C, but in a big sunspot the temperature can drop to about 4000 degrees C. Sunspots come in sizes between about 2500 km and about 50,000 km.