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Q: What part of a star determines its temperature luminosity and diameter?
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What happens to the temperature of main sequence stars as the brightness increases?

Stars in their Main Sequence stage have generally proportional temperature and color. The color-temperature spectrum of a star ranges from red (2000-3000 Kelvins) to blue (25,000+ Kelvins). Red Giants have a relatively high luminosity and low temperatures. White dwarfs have relatively low luminosity and high temperatures. Main Sequence stars are proportional temperature/color therefore they can vary from relatively high luminosity and temperature to relatively low luminosity and temperature.Absolute Magnitude is the star's genuine brightness. It's apparent magnitude is it's brightness from earth. A star can only be accurately classified once data on it's absolute magnitude is acquired.


Does smaller mass stars have a greater luminosity than larger mass stars?

This is not necessarily true. most of the time stars with a larger diameter have more mass but some stars with a smaller diameter are more dense and have a greater mass. Find a main sequence star chart and you can compare the data.


What two factors determine how bright a star looks from earth?

The two factors are temperature and luminosity based on the HR diagram. The stage of the star in its life cycle also plays a key part.


What is part of diameter?

Diameter is a noun.


What part of speech is diameter?

Diameter is a noun.


What part of a diameter is a radius?

It is half of the diameter or radius = diameter/2


What is the part of speech for the word diameter?

"Diameter" is a noun.


How are rain hail and snow formed?

Rain, hail, and snow are all forms of precipitation which is part of the water cycle. The temperature of the upper atmosphere determines what form the precipitation will be.


What determines a cell's shape?

the system its part of


What part of the eye determines the color?

iris


Is there a second star that is like the sun?

Betelgeuse, part of Orion, the Hunter shines with 60 000 times the Sun's luminosity.


Why does the fan come on in the passenger compartment several minutes after the car has been turned off on a 2002 Volvo S80?

The cabin temperature sensor determines that the air temperature is high and automatically turns on the fan to cool down the interior of the car. This is part of the design.