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∙ 15y agoThe Hertzsprung-Russell diagram shows absolute magnitute or brightness against it's colour (which is an indication of temperature) . This shows the main sequence, which describes the typical life of a star.
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∙ 12y agoWiki User
∙ 9y agoThe amount of light we receive from a star - other things being equal - is inversely proportional to the square of the distance. For example, from a star that is ten times as far from us as another star (of the same type), we will only receive 1/100 of the light that we receive from the closer star.
The "actual" brightness of the star is called "absolute magnitude". It is calculated as if all stars were at the same distance, so that we can compare stars directly. The "apparent magnitude" of the star is how bright it appears in our own night sky.
Two stars can have the same apparent magnitude even though one star is small, dim and close, while the other star is huge, bright and distant.
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∙ 15y agogenerally the hotter the star the more bright it will be generally the hotter the star the more bright it will be
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∙ 11y agoBrightness tells you the temperature and mostly temperature would tell the brightness of the star that we are talking about.
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∙ 8y agoHotter stars appear brighter, and cooler stars appear dimmer
the brightness of a star is dependant on its temperature and radius. however, while a star is burning hydrogen into helium (which all stars do for most of their lifespan and it's usually this kind of object we mean when we say "star") a correlation does exist between the mass of the star and its luminosity (brightness)
Age of the star, size, and temperature. The answer is in another post that I saw.
The relationship is that the color is an indication of the star's surface temperature. For example, red stars are cooler, while blue stars are hotter. You can find more details in the Wikipedia article "Stellar classification".
The answer to this question is Hertzsprung-Russell diagram
The brightness of a star depends on the star's temperature, size, and distance from Earth.Distance on which you can see the stars.
Brightness tells you the temperature and mostly temperature would tell the brightness of the star that we are talking about.
Hertzsprung and Russell.
Hertzsprung and Russell.
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The brightness is very similar to the temperature, the brightness relies on the temperature
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.
Ejnar Hertzsprung and Henry Norris Russell,working independently, realized the relationship between a star's temperature and its brightness.Together, in 1910, they formed what is now known as the Hertzsprung--Russell diagram or HR Diagram.It's a scatter graph showing the relationship between a star's absolute magnitudes, their spectral types and temperatures.
Ejnar Hertzsprung and Henry Norris Russell,working independently, realized the relationship between a star's temperature and its brightness.Together, in 1910, they formed what is now known as the Hertzsprung--Russell diagram or HR Diagram.It's a scatter graph showing the relationship between a star's absolute magnitudes, their spectral types and temperatures.
The Hertzsprung-Russel diagram shows brightness versus color (the color reflects the star's temperature).
the brightness of a star is dependant on its temperature and radius. however, while a star is burning hydrogen into helium (which all stars do for most of their lifespan and it's usually this kind of object we mean when we say "star") a correlation does exist between the mass of the star and its luminosity (brightness)
Absolute Brightness: How bright a star appears at a certain distance. Apparent Brightness: The brightness of a star as seen from Earth.
Stars' brightness and temperature are typically represented on a Hertzsprung-Russell (H-R) diagram. An average star like the Sun would be located on the "Main Sequence" portion of the graph, where brightness increases as temperature increases.