Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
32 Cards in this Set
- Front
- Back
|
Star
|
ball of gases that gives off light and heat
|
|
|
nebula
|
A cloud of gas and dust in space.
|
|
|
Protostar
|
dense material in the center of a nebula that is about to become a star
|
|
|
Binary stars
|
two stars that revolve arund each other
|
|
|
star cluster
|
Large group of stars that travel together through space.
|
|
|
Spectrum
|
pattern of diffrent colors of light coming from an object
|
|
|
Spectrograph
|
devise that measures the sprectrum of an object
|
|
|
Spectroscopy
|
study of light coming from objects in space
|
|
|
magitude
|
A way to measure a star's brightness.
|
|
|
main sequence star
|
A star that falls within a long, narrow, band across the H-R diagram.
|
|
|
Red Giant
|
large,bright star that is fairly cool
|
|
|
Supergiant
|
very large very bright star
|
|
|
white dwarf
|
Very small, hot star
|
|
|
Nova
|
explosion where the outer layers of a star are blown off
|
|
|
Supernova
|
violent explosion where a star is blown apart
|
|
|
core
|
Center of the Sun
|
|
|
Photosphere
|
inner layer of the suns atmosphere
|
|
|
Chromosphere
|
layer of the suns atmosphere above the photsphere
|
|
|
Corona
|
outer layer of the suns atmospheres
|
|
|
sunspot
|
Dark, cool area on the Sun's surface.
|
|
|
Prominence
|
streams of gas that shoots high above the suns surface
|
|
|
Solar Flare
|
eruption of electrically charged particles from the surface of the sun
|
|
|
Nucleus
|
center ,or core,of n atom
|
|
|
fusion
|
Reaction in which atomic nuclei combine to form larger nuclei.
|
|
|
Constellation
|
group of stars that form a pattern n the sky
|
|
|
Galaxy
|
huge collections of stars,gas, and dust that travle together through space
|
|
|
ellipitcal galaxy
|
Galaxy shaped like a ball or slightly flattened ball.
|
|
|
Irregular galaxy
|
galaxy with no definite shape
|
|
|
Spril galaxy
|
spiral galaxy
|
|
|
big bang
|
Explosion that may have begun the universe about 14 billion years ago.
|
|
|
Black hole
|
a region of space having a gravitational field so intense that no matter or radiation can escape.
|
|
|
Quasar
|
a massive and extremely remote celestial object, emitting exceptionally large amounts of energy, and typically having a starlike image in a telescope. It has been suggested that quasars contain massive black holes and may represent a stage in the evolution of some galaxies.
|
