Calculadora de Resolución de Imagen Astronómica — Fórmula
## Telescope Image Resolution
The resolving power of a telescope is limited by diffraction at the aperture.
### Dawes Limit
**theta = 116 / D**
where D is in mm. This empirical limit gives the smallest angular separation at which two equal stars can be distinguished.
### Rayleigh Criterion
**theta = 1.22 * lambda / D**
At 550 nm this is 138.4 / D arcseconds.
The resolving power of a telescope is limited by diffraction at the aperture.
### Dawes Limit
**theta = 116 / D**
where D is in mm. This empirical limit gives the smallest angular separation at which two equal stars can be distinguished.
### Rayleigh Criterion
**theta = 1.22 * lambda / D**
At 550 nm this is 138.4 / D arcseconds.
Ejemplo Resuelto
200 mm aperture telescope.
- Dawes limit = 116 / 200 = 0.58 arcsec
- Rayleigh limit = 138.4 / 200 = 0.692 arcsec