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Download Stars are classified according to their color
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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!