Who was the first to classify stars by their brightness?

Answer 1

The relationship between a star's temperature and brightness was discovered independently around 1910 by Ejnar Hertzsprung and Henry Norris Russell. The relationship between these to parameters is depicted in a Hertzsprung-Russell diagram or H-R diagram.

Answer 2

The first to classify stars by their brightness was the Greek astronomer Hipparchus in the 2nd century BC. He ranked stars based on their apparent magnitude, with 1 being the brightest and 6 being the faintest.

Answer 3

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Answer 4

It is generally believed Hipparchus was the first to classify stars by their brightness

Answer 5

i can answer it it is edward hubble

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Answer 6

By having so much Swag

Answer 7

hipparchus