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Astronomy
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Astronomy Tools
FOV calculator
Simulate the Field of view with different telescopes, cameras and eyepieces
Moon Calculator
View the Moon phase, position and libration
Planetary orbit info
View where the planets are in their orbits relative to Earth
Jupiter moon positions
View the positions of the Galilean moons around Jupiter
Angle of Saturn's rings
View the angle of Saturn's rings
Planet size and viewing info
View the relative sizes of planets
Astronomy Equipment Database
Database of telescopes, cameras, eyepieces and binoculars.
Messier Catalogue
110 bright galaxies, nebulae and star clusters