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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.
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∙ 14y agoIt is generally believed Hipparchus was the first to classify stars by their brightness
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∙ 11y agoi can answer it it is edward hubble
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How does the hertzsprung Russell diagram classify stars?
increase in absolute brightness as they increase in temperature.Increase in brightness as they increase in temperature
What do astronomers plan to fined out by classify stars?
astronomers plan to find the color, size ,temperatures, brightness, and also composition and radiation by stone a student at Robert Mitchell school 6th grade
What is the stars intrinsic brightness called?
Luminosity.
How do scientists classify a star by size?
The scientists classify them by them color,there tempher,and by there light.
What compares the brightness of stars as if they were the same distance from earth?
midorz
What are the five characteristics to classify stars?
they are the color, brightness, what its made of
What are characteristics used to classify a star?
you classify stars by color, temperature, size, composition, and brightness.
How does the hertzsprung Russell diagram classify stars?
increase in absolute brightness as they increase in temperature.Increase in brightness as they increase in temperature
What traits do scientist use to classify stars?
Scientists use color, size, brightness, and temperature to classify stars.
What is the main characteristics used to classify stars?
age, brightness , color, bubblyness, yellowness , and heet
What are the four variables astromeners use to classify stars?
size/mass, temperature, color, and brightness
What are the three main characteristic used to classify stars?
The three characteristic are temperature, size, and brightness.
How are stars classifieds?
Stars are classified by their color, temperatures, sizes, and brightness, it could also be by composition and radiation.Scientists classify stars by color, luminosity, and temperature.
What are five characteristics used to classify stars?
---- 1. color 2.size 3.brightness 4.compostion 5.temperature .
What are the four characteristics that scientists use to classify stars?
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.
What are the two main properties that astonomers use to classify stars?
The surface temperature and the absolute magnitude, which is the brightness of the star when viewed from a standard distance of 10 parsecs.
Do stars have the same brightness and sizes?
No. Stars vary greatly in size and brightness.
