- Shuffle
Toggle OnToggle Off
- Alphabetize
Toggle OnToggle Off
- Front First
Toggle OnToggle Off
- Both Sides
Toggle OnToggle Off
Front
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
PLAY BUTTON
PLAY BUTTON
17 Cards in this Set
- Front
- Back
|
Constellation
|
patterns of stars (example: Big Dipper)
|
|
Binary Star
|
pairs of stars pulled together by gravity
|
|
Light-year
|
the distance that light travels in 1 year (about 9.5 trillion kilometers)
|
|
Apparent magnitude
|
how bright a star appears from Earth. it's brightness depends on 3 things: how big it is, how hot it is, and how far away it is.
|
|
Absolute magnitude
|
how bright a star actually is.
|
|
Main-sequence star
|
stars that fall along a line of the constellation
|
|
Red giant
|
very bright stars that are outside of the main sequence (or outside of the pattern of the constellation)
|
|
Supergiant
|
very big red giants
|
|
Cepheid variable
|
stars that get brighter and fainter in a regular sequence.
|
|
Nova
|
sudden brightening of a star
|
|
Nebulae
|
clouds of dusts and gases between stars
|
|
Protostar
|
mass of gas that is developing into a star
|
|
Supernova
|
stars 3 times bigger than the sun that end in a big explosion.
|
|
White dwarf
|
the remains of really small stars
|
|
Neutron star
|
the remains of supernova explosions
|
|
Pulsar
|
a star that gives short bursts of puilses of energy
|
|
Black hole
|
remains of supernova explosion that have gravity so strong that not even light can escape. anything that moves too near it would be swept in by it's gravity and lost forever.
|
