Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Stars are classified according to their color
Document related concepts
Corona Borealis wikipedia , lookup
Auriga (constellation) wikipedia , lookup
Rare Earth hypothesis wikipedia , lookup
Chinese astronomy wikipedia , lookup
History of astronomy wikipedia , lookup
Astronomical unit wikipedia , lookup
Cygnus (constellation) wikipedia , lookup
Corona Australis wikipedia , lookup
Perseus (constellation) wikipedia , lookup
Dialogue Concerning the Two Chief World Systems wikipedia , lookup
Constellation wikipedia , lookup
Cassiopeia (constellation) wikipedia , lookup
Aquarius (constellation) wikipedia , lookup
International Ultraviolet Explorer wikipedia , lookup
Observational astronomy wikipedia , lookup
Corvus (constellation) wikipedia , lookup
Star catalogue wikipedia , lookup
Cosmic distance ladder wikipedia , lookup
H II region wikipedia , lookup
Stellar classification wikipedia , lookup
Stellar evolution wikipedia , lookup
Timeline of astronomy wikipedia , lookup
Transcript
Stars EQ: How do we classify Stars? Star Classification Color • Temperature • Size • brightness • Why are they different colors? • Stars are classified according to their color temperature: Red stars are the coolest yellow stars are hotter, white stars are hotter yet blue stars are the most hot. Star Sizes… • Supergiants: VERY LARGE! 100 times larger than our sun! • Medium Sized: OUR SUN • Dwarf stars: about half the size of Earth What is a Light Year? • Astronomers use a unit of measurement called the “Light Year” to measure distances between the stars. • Distance that light travels in one year. Its about 9.5 million million kilometers. That is not a typo!
