Astronomy
Star Charts
generate a star chart
generate a star chart for a specified location
compute the date and properties of an eclipse
get information about a meteor shower
compute the location of a planet on a specified date
do computations with properties of planets, moons, etc.
compute location and other properties of a comet
compute location and get properties of a star
compare several stars
do computations with star properties
get information about an exoplanet
do computations using properties of exoplanets
compute location and get properties of a galaxy
get a property of a galaxy
compute location and get properties of a star cluster
locate a cluster at a specified time
compute location and get properties of a nebula
compare nebulae
Astronomical Radio Sources
look up objects by name
look up objects by catalog number
compute the orbital period of a massive body orbiting another
compute cosmological properties of the universe
get information about an observatory
compute telescope properties
get information about a satellite
compare satellites
get information about a space probe
compare space probes
get information about an Apollo space mission
compare Apollo missions