The solar system planets:

Orbital eccentricity for each planet:

Orbital periods in sidereal years:

Rules for the orbital elements of Earth:

Obliquity of each planet:

Albedo of each planet:

An image of Jupiter:

The known satellites of Pluto:

Diameter of each satellite in meters:

Orbit semimajor axis in meters:

Number of known satellites for each planet:

The named constellations the Sun passes through over a year, including Ophiuchus:

Compute the ecliptic path for a planet over the course of a year:

The paths for the visible planets:

The distance from Earth to the visible planets over a year:

The apparent magnitude of the visible planets as viewed from Earth over a year:

Compute and plot the analemma of the Sun:

Compute positions for Venus in the morning sky for 2009:

The 15 brightest stars as seen from Earth:

The constellations for the 10 brightest stars:

Distance from Earth to Sirius in light years:

Distance in meters:

Position of Sirius:

Spectral class for the Sun:

Spectral class information in list form:

Alternate names for Sirius:

Henry Draper Memorial catalog number for Sirius:

Give the individual stars that form Alpha Centauri:

Give the name of Tau Ceti, including Greek letters:

The same thing without special characters:

Brightest 10 supergiants as seen from Earth:

Number of available supergiants:

Brightest 10 class O stars:

Brightest 10 Wolf–Rayet stars:

Brightest 10 Messier objects:

Object types:

The brightest 10 planetary nebulas:

Declinations:

Brightest 10 galaxies:

Distances in light years:

Galaxy types of the brightest 10 galaxies:

Hubble types:

Surface brightness for the 10 brightest galaxies:

Alternate names for NGC 292:

Alternate names in Wolfram Language form:

Principal Galaxy Catalog number for NGC 292:

Make a table of densities of planets:

Log-log plot of orbital period versus distance for the planets, illustrating Kepler's third law:

The corresponding plot for all known planetary moons, with a line for each planet:

Find the total number of known planetary moons in the solar system:

Make a log rank plot of the masses of the moons, with names as tooltips:

Compute the number of minor planets at different distances from the Sun:

The Kirkwood gaps are the result of orbital resonances with Jupiter:

Plotting semimajor axis versus inclination reveals several distinct groups of minor planets:

Plot the RA and declination of the 100 brightest stars, with tooltips for their names:

The corresponding picture for the 100 nearest stars:

Rank plot of absolute magnitudes of the nearest 100 stars:

Rank plot of absolute magnitudes of the brightest 100 stars:

Distribution of basic spectral classes for the 100 brightest stars:

Distribution for the 100 nearest stars:

Rank plot of the distances to the nearest 100 stars:

Differences between successive distances:

Find the constellations with the largest number of stars in AstronomicalData:

Find the number of overlaps of different star catalogs:

Get the correct color and simulate lighting for a star:

The color of stars is an indication of their temperature:

Rank plot of the distances to the brightest 200 galaxies:

Find how many objects are listed in both the NGC and Messier catalogs:

The Local Group of galaxies includes the Milky Way, M31, and their satellite galaxies: