Home > Industry/Domain > Astronomy > Planetary science
Planetary science
The scientific study of planets including Earth, moons, and planetary systems of the Solar System in particular and the processes that form them.
Industry: Astronomy
Add a new termContributors in Planetary science
Planetary science
ephemeris
Astronomy; Planetary science
A table of positions in right ascension (celestial coordinate corresponding to longitude on Earth) and declination (celestial coordinate corresponding to latitude on Earth), as a function of time for ...
torino scale
Astronomy; Planetary science
The official scale (created by Professor Richard P. Binzel and formalized in Torino, Italy in 1999) for categorizing the Earth impact hazard for asteroids and comets. Values range from 0 (no chance ...
asteroid family
Astronomy; Planetary science
Group of asteroids with similar orbital elements (distance from the Sun, inclination of the orbital plane to the Earth's orbital plane, and eccentricity of the orbit) thought to be remnants of one ...
fissure
Astronomy; Planetary science
Crack extending far into a planet or moon through which magma travels to and erupts onto the surface.
cosmic rays
Astronomy; Planetary science
Extremely high-energy subatomic particles that continuously bombard Earth from all directions. Most cosmic rays hit and break up atomic nuclei in Earth's upper atmosphere. Airless bodies are not ...
olivine
Astronomy; Planetary science
Mineral found in basalt; ranges from Mg 2 SiO 4 to Fe 2 SiO 4 .
ordinary chondrite
Astronomy; Planetary science
The most common class of meteorite to fall on Earth. They contain variable amounts of metal and chondrules in a matrix of mostly silicate minerals. See chondrite.