Assertion: second moon | /r/HasAspect | elliptical orbit
Facets:
value: with perigee
type: OTHER
Source sentences:
text: Petit proposed that this second moon had an elliptical orbit, a period of 2 hours 44 minutes, with 3,570 km (2,220 mi) apogee and 11.4 km (7.1 mi) perigee.