Quote:
Originally Posted by pgc hunter
The size of the disk only decreases as you increase the aperture and vice-versa.
|
This to me seems counter-intuitive, as I'm under the impression larger aperture = larger object size.
Quote:
Originally Posted by David Fitz-Henr
Larger central obstructions will not only result in more energy being distributed in the diffraction rings, but the angular size of the airy disk and the rings will decrease as well.
|
In terms of observing, does this mean a larger central obstruction would make it easier to resolve stars in globular clusters? What would the effect be on observing faint galaxies, such as those in the Grus quartet?