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;
33 Cards in this Set
- Front
- Back
|
Word
|
Definition
|
|
|
Star
|
Ball of gasesthat 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 around each other
|
|
|
Star Cluster
|
Large group of stars that travel together through space.
|
|
|
Spectrum
|
Pattern of different colors of light coming from an object.
|
|
|
Spectrograph
|
Device that measures the spectrum of an object.
|
|
|
Spectroscopy
|
Study of light coming from objects in space.
|
|
|
Magnitude
|
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 and 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 Sun's atmosphere
|
|
|
Chromosphere
|
Layer of the Sun's atmosphere above the photosphere
|
|
|
Corona
|
Outer layer of the Sun's atmosphere
|
|
|
Sunspot
|
Dark, cool area on the Sun's surface.
|
|
|
Prominence
|
Stream of gas that shoots high above the Sun's surface
|
|
|
Solar Flare
|
Eruption of electrically charged particels from the suface of the Sun
|
|
|
Nucleus
|
Center, ore core, of an atom
|
|
|
Fusion
|
Reaction in which atomic nuclei combine to form larger nuclei.
|
|
|
Constellation
|
Group of stars that form a pattern in the sky
|
|
|
Galaxy
|
Huge collection of stars, gas, and dust that travel together through space
|
|
|
Elliptical Galaxy
|
Galaxy shaped like a ball or slightly flattened ball.
|
|
|
Irregular galaxy
|
Galaxy with no definite shape
|
|
|
Spril galaxy
|
Galaxy shaped like a flattened disk with spiral arms
|
|
|
Big Bang
|
Explosion that may have begun the universe about 14 billion years ago.
|
|
|
Black hole
|
Massive star that has collapsed and whose gravity is so powerful that it pulls in everything, even light
|
|
|
Quasar
|
Continuous burst of brilliant light and enormous energy from a very massive black hole
|
