Astronomy

Give the definition of core

Most dense, extreme heat
Photosphere

surface of sun
chromosphere

the inner atmosphere
corona

outer atmosphere
solar prominences

huge sheets of glowing gases which spew out from the chromosphere
solar flares

like prominences but occur much quicker
sunspots

cooler darker regions on the suns photosphere
what is a celestial body

natural objects orbiting a planet
What is luminosity

a measure of the amount of energy a start radiates
what is an asteroid

minor planets
comets

mainly dust and ice,
what is the difference from a meteor and meteorite?
- Meteor- rock and dust entering earths atmosphere
- Meteorite- meteor that has hit the earths surface

Author

Olivia14

4993

Card Set

Astronomy

Description

science

Updated

2010-01-24T21:23:38Z

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