Assertion: newtonian telescope's mirror | /r/CapableOf | gather the light
Facets:
value: from the centre of the mirror
type: TRANSITIVE-OBJECT
value: to a focus at a
type: LOCATION
value: with this method
type: MANNER
Source sentences:
text: With this method, a primary concave mirror gathers the light and image that come in at the front of the tube.
text: Whereas, the spherical mirror brings light from the centre of the mirror to a focus at A, whilst it brings the light from the edge to a focus at B. Providing some focussed light and some slightly out of focus light at all points between A and B.
text: Focal length is the distance that the primary mirror uses to bring the light to focus.
text: Larger mirrors gather more light, let you see fainter objects, and have higher resolution.
text: Ignoring blurring of the image by turbulence in the atmosphere (atmospheric seeing) and optical imperfections of the telescope, the angular resolution of an optical telescope is determined by the diameter of the primary mirror or lens gathering the light (also termed its "aperture").