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Does the black dwarf have a higher surface temperature than a blue main sequence star?
Wiki User
∙ 13y ago
No, a black dwarf would have a fairly low temperature, for a star; scarcely hot enough to glow. Way hotter than a planet, but not all THAT much hotter.
Wiki User
∙ 13y ago
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What classification of stars has the lowest surface temperature?
Black dwarfs have the lowest surface temperature.
Does a black person have a higher body temperature than a white person?
yes its just like wearing a black shirt
What is black principle?
The amount of heat released by the substance with higher temperature is equal to the amount of heat absorbed by the substance with lower temperature. The statement is often called "THE BLACK's PRINCIPLE".
Why do sunspots appeared black when observed from earth?
The relative temperature of sunspots is lower than the surrounding temperature of the sun's surface. Since we adjust our camera's to the high temperature of the sun the relatively cooler sunspots appear black to us.
How can you measure temperature using thermopaper?
Paper Thermometer Thermopaper is used to measure the maximum temperature that a surface has reached. From the manufacturer's website, paperthermometer.com, the directions are:Affix Thermopaper on a clean surface.Heat/run through procedure that is being tested.The gray/white temperature sensitive element will turn to black if the surface has reached the rated temperature.
Which color represents the lowest surface temperature for a star?
Red stars are the coolest of the stars.However, for completeness:A brown dwarf is cooler.A white dwarf can be the hottest and one of the coolest (Depending on age)A black dwarf is the coldest.
Which is a better reflector of light- a black surface or a white surface?
which is a better reflector of light-a black surface or a white surface
What would be the difference of temperature between two surfaces- one painted white and the other painted black considering same material size and exposure time?
The difference of temperature between two surfaces- one painted white and the other painted black considering same material size and exposure time will be dependent on the sunlight intensity. The black surface will be hotter. on the other hand, when brought indoors, the black surface will lose heat faster and will be cooler.
Ambient air temp sensor Mercedes Benz 300e what does is do?
It tell you what the outside temperature is, and if you have a ambiant temperature guage with a sender on the bummper then this will tell you the temperature of the road surface so that you know if its forming black ice or icy road conditions.
If black is the best absorber of heat why do Bedouins wear black robes in the hot desert?
Black is the best absorber of heat, but it is also the best radiator of heat. Therefore, assuming that the Bedouin's internal temperature of 98.6oF (37oC) is higher than the temperature of the surrounding desert, he (or she) will, on average, lose heat.
Can black metal reflect?
It the surface is a matt black, then no. A glossy black surface may reflect a little.
Find the approximate temperature of the blackbody radiator?
On first acquaintance with the question one might think that the black body may be perfectly cold as the heat emitted is equal to the heat absorbed and emissivity being a perfect 1, and I think you would be close to the truth. However emissivity is a function of temperature of the body so heat emitted at 0ºK is 0 Joules... So in space that is more or less true, however, consider a black body hovering between Earth and moon - at least at Earths orbital distance. Every 'body' as such has to have at least two sides even if it is infinitely thin. Suppose then that the black body is infinitley thin and that it had an infinitley shiny surface on the reverse. I think the temperature of the surface of the black body facing the sun would then approach and then equal the radiation temperature of the suns surface. (No losses). However if the reverse of the surface was as black as the the front then the losses out back would equal the incoming gains...but to do that it would have to have some temperature. So, I propose that a a perfect black body would have a temperature in perfect proportion to its area facing the sun and the suns area and temperature as seen by each other, and inversly proportional to its distance from the hot body. So, hang on, the area of the black body does not matter, if it emits the same out back or it doesn't. If it does not- (perfect absorbtion, no losses) it approaches and attains the suns surface radiation temperature. If losses equal gain then gain is proportional to inverse of square of distance of heat source temperature wise. OK sun is 20 million ºK at surface. Distance at 0ºK is ∞, mmm.. what does that make Earths orbit theoretical temp?... I am lost. My maths has deserted me! Any way the main thing is that a perfect black body's temperature in deep space is essentially 0ºK or at the background temperature of space( (maybe a few millionths of a degree Kelvin above Zero. But the closer it gets to a heat source, according to the square of its distance from that heat source, so its temperature increases until at the surface of that heat source it attains the same temperature of the heat source. Seems reasonable. Though I would like to Know how to calculate the theoretical temp at a fixed distance from a heat source!
