The Gregorian telescope consists of two concave mirrors; the primary mirror (a concave paraboloid) collects the light and brings it to a focus before the secondary mirror (a concave ellipsoid) where it is reflected back through a hole in the centre ...

Icon class
icon_class
fas fa-quote-left
icon_class_computed
fas fa-quote-left
Related content
Source
Snippet kind
Keywords
Full quote
The Gregorian telescope consists of two concave mirrors; the primary mirror (a concave paraboloid) collects the light and brings it to a focus before the secondary mirror (a concave ellipsoid) where it is reflected back through a hole in the centre of the primary, and thence out the bottom end of the instrument where it can be viewed with the aid of the eyepiece.
Next snippet
Related snippets
Related snippets (backlinks)
Visit also
Visit also (backlinks)