Assertion: eyepiece's field | /r/HasProperty | helpful
Facets:
value: in viewing star clusters
type: LOCATION
Source sentences:
text: Wider apparent fields of view are helpful in viewing star clusters, galaxies and nebulae, especially large emission nebulae like the Orion Nebula, but the real reason for wide fields of view is to allow the same true field of view as is found in a lower power, narrower FOV eyepiece.