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Stars are classified by four different characteristics. Apparent magnitude (brightness) and absolute magnitude (how bright it would appear at 10 parsecs from the earth). Luminosity, another measure of brightness, compares the star to the sun's brightness. Spectral classifications are measured by the star's temperatures. Finally stars are signed a number by scientists through the Morgan-Keenan System.

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9y ago
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3mo ago

Scientists classify stars based on their luminosity, temperature, size, and color. These characteristics help determine where a star falls on the Hertzsprung-Russell diagram, which provides insight into its evolutionary stage and lifespan.

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12y ago

Color, temperature, size, composition, and brightness. :)

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13y ago

-color

-temperature

-size

-and much more

(:

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Anonymous

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4y ago
ohohohohohohoho noo

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10y ago

Color, Density, Size and Temperature

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10y ago

the h-r method

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12y ago

weight.

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Q: What are the four characteristics that scientists use to classify stars?
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