Astronomy Vocab Flashcard Part 1

Front

Distance light travels in a year

Back

Light Year

Front

Avg. distance from Earth to sun

Back

Astronomical Unit

Front

Spiral galaxy we live in

Back

Milky Way Galaxy

Front

Brightest star in the night sky

Back

Sirius

Front

Method of writing numbers as a decimal (1-10) x 10^n. Example: 4.5 x 10^4

Back

Scientific Notation

Front

Closest star to Earth (4.24 light years):

Back

Proxima Centauri

Front

30 closest galaxies to us, including the Milky Way

Back

Local Group

Front

A planet outside our solar system

Back

Exoplanet

Front

Order of planets:

Back

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

Front

Largest planet?

Back

Jupiter