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How does the luminosity of a blackbody vary with its surface temperature?
Masterbaby721
Both the absorption and the luminosity of a blackbody in equilibrium increase in magnitude with increasing temperature, and the spectral distribution of the luminosity increases in frequency (decreases in wavelength).
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∙ 14y ago
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What are the difrences of a with dwarf and the giant stars?
Through a comparison of solar luminosity and temperature seen with the H-R diagram. On this diagram, stars sharing the same temperature but different luminosities show measurable differences in radius as well as mass. So if two stars both have the same visible surface temperature but one is more luminous, it has to be larger. This is further explained by Stefan Boltzmann's law,L=(4πR^2 x sigma(constant) x T^4)A Star with the the same surface temperature with larger surface area results in more Luminosity.
Relationship between stars distance to earth and luminosity?
Generally speaking, the apparent luminosity would be an inverse square relationship, which is to say, if the same star was at twice the distance, a quarter of the light would be reaching the observer. But absolute luminosity can of course vary without regard to distance from Earth - dim stars can be close, or bright stars distant, or vice-versa.
What is the temperature of the planet vary with the distance of the sun?
In general terms, the surface temperature of a planet decreases as its distance from the sun increases. However, Venus is approx 90% further from the sun than Mercury. But, instead of the temperature being lower, it is approx 40% higher.
How and why do plants vary?
from the temperature
How much colder is Pluto than earth?
Pluto's temperature is around 43 K. For comparison, the temperature on Earth is somewhere around 300 K. Pluto's temperature should vary quite a bit, depending on its distance from the Sun, since its orbit is fairly excentric.
Are main sequence stars all alike in their luminosity and temperature?
No. Main sequence stars vary greatly in both temperature and luminosity. The least massive stars, red dwarfs, can have temperatures as low as 2,300 Kelvin and luminosity as low as 0.015% that of the sun. The most massive stars, which are blue in color can have temperatures as high as 50,000 Kelvin and may be hundreds of thousands times more luminous than the sun.
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.
What is the main reason the temperature on the earth's surface vary from place to place?
It depends on the tile of the earth's Axis.....i think
Why does the Moon's surface temperature vary greatly?
it has no atmosphere to smooth out temperatures, and each day and night lasts a fortnight
What are the difrences of a with dwarf and the giant stars?
Through a comparison of solar luminosity and temperature seen with the H-R diagram. On this diagram, stars sharing the same temperature but different luminosities show measurable differences in radius as well as mass. So if two stars both have the same visible surface temperature but one is more luminous, it has to be larger. This is further explained by Stefan Boltzmann's law,L=(4πR^2 x sigma(constant) x T^4)A Star with the the same surface temperature with larger surface area results in more Luminosity.
How do the temperature on earth vary?
The composition of soil mainly depends on the underlying bedrock, or weathering of surface rocks. Surface soil texture (on farmland, for instance) can be changed by using organic fertilisers.
Why the temperature of the stars vary from one another?
The temperature in the core of a star depends, to a great extent, on:* The star's mass. The general tendency is that high-mass stars are hotter. * Where the star is in its life cycle. The star's core temperature will vary over time. On the other hand, the star's surface temperature also depends on its size. Thus, it is possible that PRECISELY because a star is hotter in the core, it gets bigger, and the surface temperature DECREASES (though its total energy output increases).
What is the surface temperature on the light side of venus?
The temperature doesn't actually vary much, day or night. The temperatures are around 460 to 480 degrees Celsius everywhere, all the time.
What color are stars?
Stars can vary from a bluish-white to deep red depending on the surface temperature. The colours are more noticeable on colour film.
What is the color and surface temperature in the constellation Capricorn?
Capricorn is a constellation, not a star. There are 104 stellar objects in Capricorn, and these vary greatly in their colours and emperatures.
What is Saturn's temperature range and high and low?
The average temperature at the "surface" of Saturn is about minus 150 degrees Celsius. In fact that doesn't vary much from poles to equator. So, there not much of a maximum and minimum.
Do stars vary greatly in size and color only.?
No. Stars vary in lots of aspects, including:* Diameter * Mass * Color (and the related surface temperature) * Chemical composition * Density (related to mass and diameter) * Brightness
