Phenomenon
Stellar Occultation
A star vanishing behind a closer body.
When the Moon, a planet, or an asteroid passes in front of a star, briefly hiding it — used to measure sizes and atmospheres.
Overview
When the Moon, a planet, or an asteroid passes in front of a star, briefly hiding it — used to measure sizes and atmospheres.
See also
Solar Eclipse
When the Moon stands between Earth and Sun.
Lunar Eclipse
When Earth's shadow falls on the Moon.
Meteor Showers
Cosmic dust burning in our atmosphere.
Aurora (Northern/Southern Lights)
Solar wind painting the upper atmosphere.
Supernova
The catastrophic death of a massive star.
Planetary Conjunction
When two worlds appear to meet in the sky.