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What else can I help you with?
Why is the corona cooler then the rest of the sun?
The heat energy is produced in the very centre of the sun/star so the corona is cooler because it is further away from the source of the energy.
What color of star is hotter than the red star but cooler than the yellow star?
Orange. In fact, these are often still called "red" stars for convenience.
The nucleus that remains from an original star when the rest of the stars has blown away is called?
Neutron star
Why do sunspots appear?
Sunspots appear because of the magnetic fields, they appear black because they're slightly cooler than the surface of the rest of star.
What is the virtual reality rest and relax area in the movie Star Trek The Next Generation?
The Holodeck.
Why a giant star that is cooler than your sun similar to Aldebaran has a greater luminosity than the sun?
A giant star like Aldebaran is much larger in size than the Sun, which allows it to emit more light despite having a cooler surface temperature. Luminosity depends not only on temperature but also on the star's surface area; a larger surface area enables it to radiate more energy overall. Therefore, even though Aldebaran is cooler, its significant size contributes to its greater luminosity compared to the Sun.
Why does the expansion of a star's envelope make it cooler and more luminous?
As a star's envelope expands, the outer layers move farther from the core, reducing the pressure and causing the core to contract and heat up. This increase in temperature causes the star to emit more energy, making it more luminous. However, the expanded envelope also increases the surface area over which this energy is spread, resulting in cooler surface temperatures.
What star is smaller and cooler than the sun?
red
If a red star and a white star radiate energy at the same rate can they be the same size If not which must be the largest Why?
They cannot be the same size. The red star must be larger. Red stars are cooler that blue stars and so radiate less energy for a given amount of surface area. In order to radiate the same amount of energy as a blue star, the red star must therefore have a larger surface area.
Is there a way if telling which stars are hotter or cooler by the naked eye?
Stars which are RED are cooler stars than the blue one, so Yes it is possible to distinguish coller stars by the naked eye.Star Betelgeuseis called Ardra in Indian-Astronomy. Ardra in sankrith means wet. Betelgeuse is one of the red star and cooler than other bluestars.I only wonder, how ancientpeople could have imagined this star could be cooler than others and name it as Ardra !
What is the ralation of color to a star's temperature?
Generally, the more blue a star is then the hotter it is, and the more red it is then the cooler it is.
How can Arcturus be cooler and more luminous than the Sun?
Arcturus is cooler and more luminous than the Sun because it is a giant star, which means it has exhausted the hydrogen fuel in its core and expanded, causing its surface temperature to be lower than the Sun's but its overall size and brightness to be greater. This combination of lower temperature and larger size results in Arcturus being cooler and more luminous than the Sun.
