Age on Other Planets Calculator
Calculate your exact age and birthdays across the Solar System
Computes your age in planetary years for Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune based on their orbital periods.
Light-Year & Parsec Cosmic Distance Calculator
Convert light-years into parsecs, astronomical units, km, and miles
Easily convert interstellar distances with built-in benchmarks including Proxima Centauri, Orion, and the Andromeda Galaxy.
Telescope Magnification & Optics Calculator
Calculate magnification power, exit pupil, and Dawes’ resolution limit
Determine the optical limits of your telescope and eyepiece combinations, including Barlow lenses and focal ratios.