Star
Glowing ball of gas powered by nuclear fusion.
Public flashcard set
Astronomy Starter
Planets, stars, and space basics.
school astronomy science
Flashcards
Planet
Celestial body orbiting a star, roughly rounded.
Moon / satellite
Natural body orbiting a planet.
Galaxy
Huge system of stars, gas, and dust (e.g. Milky Way).
Solar System
Sun and objects bound by its gravity.
Orbit
Path of one body around another.
Light-year
Distance light travels in one year.
Black hole
Region with gravity so strong light cannot escape.
Nebula
Cloud of gas and dust in space.
Asteroid
Rocky object orbiting the Sun, mostly in the belt.
Comet
Icy body that forms a coma/tail near the Sun.
Eclipse
One body blocking light from another.
Equinox
When day and night are about equal length.
Solstice
Longest or shortest day of the year.