Assertion: lagoon nebula | /r/HasAspect | oblong shape
Facets:
value: with lying on one side
type: OTHER
Source sentences:
text: When observed with binoculars, the Lagoon Nebula has an oblong shape, with the bright central region, known as the Hourglass Nebula, lying on one side, separated by a dark rift from an open cluster of stars that lie on the other side of M8.