Plate scale
The plate scale of a telescope connects the angular separation of an object with the linear separation of its image at the focal plane
If F is measured in mm, the plate scale in radians per mm is given by p = θ / s = 1 / F
since s = F θ
Plate scale is usually expressed in arc-seconds per mm
p = 206265 / F , where F is in mm.
.[1] See Photographic plate.
Notes
- ^ Carroll, Bradley; Ostlie, Dale. An Introduction to Modern Astrophysics (1st ed.). p. 163.
 | This astronomy-related article is a stub. You can help Wikipedia by expanding it. |