Sentences with phrase «temperature of a star»
As this is the core temperature of a star with 1.5 solar masses, the upper main sequence consists of stars above this mass.
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From this point, the brightness and surface temperature of stars typically increase with age.
Images in ultraviolet, blue, and visual light were combined for this picture, so that the colors roughly correspond to the surface temperatures of stars in M15.
The temperature of a star will be conveyed through either the left or right ear.
Cole Miller of the University of Maryland in College Park finds this reasoning convincing, but points out that both groups of astronomers relied on particularly complex models to estimate the temperature of a star from its brightness, rather than measuring the temperature directly.
The strikingly different colours of NGC 2014 and NGC 2020 are the result of both the different chemical makeup of the surrounding gas and the temperatures of the stars that are causing the clouds to glow.
The temperature of a star determines its spectral type, because the energy modifies the physical properties of the plasma in the photosphere.
The series of radio observations measured the temperature of the star's atmosphere at different heights.
To make this comparison, astronomers use a diagram (the colour - magnitude diagram) that plots the temperatures of the stars against their luminosities.
This number corresponds to the temperature of the star and approximately follows the temperature scale used for class M giants.
Main - sequence stars vary in surface temperature from approximately 2,000 to 50,000 K, whereas more - evolved stars can have temperatures above 100,000 K. Physically, the classes indicate the temperature of the star's atmosphere and are normally listed from hottest to coldest.