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38 Cards in this Set

  • Front
  • Back
Our closest star...
the sun 10-1
How far away is the sun?
93 million miles 10-1
What gas is the feul for the sun?
Hydrogen 10-1
The brightness of a star...
magnitude 10-1
Some stars appear brighter because they are closer to the earth. This is called their...
apparent magnitude 10-1
The true brightness of a star...
absolute magnitude 10-1
A star's color tells us its...
surface temperature 10-1
Small stars are called....
dwarfs 10-1
The brightest stars are called...
supergiants 10-1
The distance light travels in a year...
light-year 10-1
The apparent movement in position of one star in relationship to another is known as...
parallax 10-1
A blue star is the _________
while red stars are the ___________
hottest 10-1
Stars that regularly change in magnitude...
variable star 10-2
When an exsiting star flares up and becomes brighter...
nova 10-2
The cloud of interstellar dust and gas around a nova...
nebula 10-2
The death explosion of a star...
supernova 10-2
When a massive star runs out of fuel, collaspses and dissapears from space, a _____________ is formed.
black hole 10-2
A spinning neutron star is called a...
pulsar 10-2
Stars that form a picture in the sky...
constellations 10-3
The belief that the stars control your life...
Astrology 10-3
The scientific study of stars...
Astronomy 10-3
A telescope that bends light...
refracting 10-3
A telescope that uses mirrors...
reflecting 10-3
The telescope that can see the stars without the atmosphere distorting them...
Hubble space telescope 10-3
Telescopes that collect radio waves...
radio telescopes 10-3
This breaks a star's light into all its colors...
spectroscope 10-3
A star group that contains only two stars...
binary 10-4
A star group that contains three or four stars...
multiple star group 10-4
A huge star system that covers many light-years of space...
galaxy 10-4
This cluster looks open _________ while this cluster looks like a crowded ball__________
Open star cluster
globular star cluster 10-4
Our galaxy...
the Milky Way 10-4
A cluster of galaxies that travel with the Milky Way...
Local Group 10-4
An irregularly shaped pieces of rock that usually orbit the sun...
asteroid 10-4
A chunk of metal or stone that is moving toward Earth's atmosphere...
meteoroid 10-4
A meteoroid that has entered Earth's atmosphere causing it to light up...
meteor 10-4
A meteor that hits the Earth...
meteorite 10-4
A chunk of frozen gases, water, and dust that orbits the sun...
comet 10-4
A famous comet that comes every 76 years...
Halley's 10-4