Examples for

Exoplanets

An exoplanet, short for extasolar planet, is a body that orbits a star other than the Sun. Obtain insight into these distant worlds using Wolfram|Alpha. The first exoplanet was discovered in 1988, and since then, the number has continued to grow as data from dedicated missions like Kepler and HARPS have made great contributions to the search. The first exoplanets discovered were large Jupiter-sized worlds close to their parent star that allowed the induced wobble of the star, implied from radial velocity measurements, to be detected. As systems became more sensitive, smaller planets at further distances from their star could be detected. Also, the ability to detect transiting exoplanets in front of the host star contributed greatly to the effort, even without radial velocity data. An ongoing goal of these searches is to find exoplanets like Earth.
Exoplanets

Explore exoplanets, which are typically named after their host star followed by a lowercase letter.

Get information about an exoplanet:

Upsilon Andromedae b
Kepler-16b

Compare exoplanets:

55 Cancri d, 55 Cancri e, 55 Cancri f
TRAPPIST-1b, TRAPPIST-1c, TRAPPIST-1d, TRAPPIST-1e, TRAPPIST-1f, TRAPPIST-1g

Compare an exoplanet to its host star:

WASP-17 versus WASP-17 b
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Properties of Exoplanets

Investigate many properties, such as mass and radius, which are derived from radial velocity measurements as well as light curve analysis.

Get a property of an exoplanet:

orbital period HD 189733 b
how was CoRoT-1b discovered?

Do computations using properties of exoplanets:

mass Iota Draconis b / Jupiter

Compare the value of a property across a class of exoplanets:

discovery year of all hot Jupiters

Rank exoplanets by specified criteria:

largest exoplanets by radius
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