Assertion: telescope's instrument | /r/Synonym | stellar coronagraphs
Facets:
value: to distinguish them
type: PURPOSE
Source sentences:
text: Most coronagraphs are intended to view the corona of the Sun, but a new class of conceptually similar instruments (called stellar coronagraphs to distinguish them from solar coronagraphs) are being used to find extrasolar planets and circumstellar disks around nearby stars as well as host galaxies in quasars and other similar objects with active galactic nuclei (AGN).