Telescope calculator 2.0.0

Calculation of parameters and characteristics of telescopes using different eyepieces and visualization.

Settings:
- language
- scale
- text font size
- input by the slider

Telescope:
- List of telescopes
- Diameter
- Focal length
- Focuser

Eyepiece:
- Focal length
- Field of view
- Barlow lens

Calculations:
- Magnification
- Stellar magnitude
- Field of view
- Maximum field of view
- f-number
- Diameter of exit pupil
- Size of craters on Moon
- 2D, 1.4D, 1D, 0.7D, 0.5D

Planets:
- Mercury
- Venus
- Mars
- Jupiter
- Saturn
- Uranus
- Neptune
- Pluto

Satellite:
- Moon

Messier:
M1, M20, M42, M88, M104