Phenomenon
Aberration of Light
Apparent shifts in star positions due to motion.
A small displacement in the apparent direction of a star caused by the observer's motion through space — discovered by James Bradley in 1729.
Overview
A small displacement in the apparent direction of a star caused by the observer's motion through space — discovered by James Bradley in 1729.
See also
Retrograde Motion
A planet apparently moving backwards among the stars.
Libration
The Moon's gentle apparent wobble.
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.