Telescope calculator (no ads)
Tools
Calculation of parameters and characteristics of telescopes with visualization
- Rating
- 4.2
- 120 ratings
- Downloads
- 3.3K+
- on Google Play
- Price
- $0.99
- No in-app purchases
- Updated
- Aug 30
- 2025 · v4.1.0
Screenshots
About Telescope calculator (no ads)
Settings:
- language (Russian, English, Hungarian, Spanish, German, French, Romanian, Croatian, Italian, Sinhala, Norwegian, Persian, Polish, Japanese, Portuguese, Korean, Catalan, Dutch, Arabic, Greek, Malay, Luxembourgish, Hindi, Indonesian , Ukrainian, Hebrew, Sardinian, Czech, Swedish, Finnish, Chinese, Bengali, Tamil, Slovenian, Turkish, Bosnian, Thai, Bulgarian, Vietnamese)
- scale
- text font size
- input by the slider
- comparison of telescopes
- bookmarks
- Moon phases
- help
- swipe
Telescope:
- List of telescopes
- Diameter
- Focal length
- Focuser
Eyepiece:
- Eyepiece list
- Focal length
- Field of view
- Barlow lens
Camera:
- list of cameras
- pixel size
- image size
- matrix size
- Binning
Calculations:
- Magnification
- Stellar magnitude
- Field of view
- Maximum field of view
- f-number
- Diameter of exit pupil
- Angular resolution
- Size of craters on Moon
- 2D, 1.4D, 1D, 0.7D, 0.5D
- Sun
- ISS
Planets:
- Mercury
- Venus
- Earth
- Mars
- Jupiter
- Saturn
- Uranus
- Neptune
- Pluto
Asteroids:
- Ceres
- Pallas
- Juno
- Vesta
- Ida
- Gaspra
Satellite:
- Moon
- Titan
- Io
- Europa
- Ganymede
- Callisto
- Titania
- Ray
Messier:
M1, M8, M13, M16, M17, M20, M27, M31, M33, M42, M45, M51, M57, M58, M63, M64, M74, M78, M81, M82, M83, M88, M97, M99, M100, M101, M104, M108
NGC:
891, 2359, 2392, 2440, 4565, 4631, 5189, 6302, 6543, 6960, 6979, 7000, 7662
IC:
1805, 1848, 2118
What’s new
Version 4.1.0 · Updated August 30, 2025
v4.1.0 image resolution increased + NGC884, NGC1514, NGC5128, NGC6888, NGC7009, NGC7129, NGC7318, NGC7380, NGC7635 v4.0.0 account for storing settings v3.6.0 increased slider input v3.5.1 + NGC891, NGC4565, NGC4631, NGC6960, NGC6979, NGC7662 v3.5.0 - changed settings, choice of object and language - full-screen advertising is twice as rare + M97, NGC2359, NGC2392, NGC2440, NGC5189, NGC6302, NGC6543, NGC7000, IC1805, IC1848, IC2118
User reviews
Great app.. Highly recommend it.
Saves a lot of time figuring what eyepiece to use and so on .Perfect for astrophotography and video and just right for new students learning how to operate any scope on the market like me.This app is worth 10 Stars .The best on the market and a reasonable price.
Just bought this excelent app. I can't find my telescope on the list though. Orion 130et eq. Could you add that? 5 stars!
Super
Very good app that calculates necessary information when using telescopes, eyepieces and oculars, and also shows the picture what you can expect. Large database of telescopes. Nice work! Very useful.
It lets me know what telescope I should not buy! This app gives you buying power. Great app to have before you buy your telescope.
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| App | Rating | Price | Installs | Last updated | Compare |
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