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What is the surface area temp of the star acturus?
Wikipedia lists a surface temperature of 4300 K.
What is the surface area of a star?
Roughly 12.57 times the square of its radius.
What flavor is the yellow can of rock star 2 x energy?
red and yeller
How many watts does an average fridge use?
New energy star models are about 470 kWh per year.
How many rotational symmetry for a star?
For a star shaped figure, as many as the number of points. For a real star (like the ones up in the sky) either infinitely many or none - depending on the level of detail that you look at. The surface of any star has lots of dimples and bumps caused by stellar activity and these will break up any symmetry. If you ignore these fine details, then the star is a smooth ellipsoid and has infinitely many rotational symmetries. These symmetries are along the star's axis of rotation. For any other axis, the star's rotation will make the equatorial region bulge out and so there will be no symmetries.
Do Hotter stars age more slowly then cooler stars?
The surface temperature is not a reliable indicator about how long a star will last. However, the total energy output is. If a star produces a lot of energy, it will burn through its fuel faster.
Which cell is the energy output of a star?
The energy output of a star comes from its core, where nuclear fusion reactions take place. During fusion, hydrogen atoms combine to form helium, releasing a tremendous amount of energy in the process.
How are energy and mass related in a star?
The same as everywhere else. Every mass has associated energy. Every energy has associated mass. Possibly this question is about the energy output of stars. Usually, the more mass a star has the higher its rate of energy output.
What is a measure of the total energy radiated by the star in one second called?
A star's luminosity is the measure of the total energy radiated by the star in one second.
What is a supernova and what happens?
A supernova is the catastrophic death of a star, characterized by a massive output of energy.
How hot is Ankaa?
Ankaa, the brightest star in the Phoenix constellation, has a surface temperature of approximately 7,400 degrees Celsius (13,352 degrees Fahrenheit). This high temperature is due to the intense nuclear reactions happening in its core, which sustain the star's brightness and energy output.
What does a stars luminosity measure?
Luminosity is the total amount of energy emitted by a star per second.
How is energy generated in a star cores?
Energy in a star's core is generated through nuclear fusion, where hydrogen atoms combine to form helium releasing a massive amount of energy in the process. The extreme temperature and pressure in the core of a star make this fusion process possible, sustaining the star's energy output.
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).
Is an orange star hotter then a yellow star?
The temperature of a yellow star's photo sphere is hotter than that of and orange star. However the total energy output of an orange star may be greater than that of a yellow star.
Why must a star convert helium after it has converted all of its hydrogen to helium?
As a star exhausts its hydrogen fuel and increases in temperature and pressure, it needs to start fusing helium to produce energy and maintain equilibrium against the inward force of gravity. This process is necessary to sustain the star's energy output and prevent collapse.
Why does the luminosity of a high-mass star remain nearly constant as the star burns heavy elements in its core even though it is producing millions of times more energy per second?
The high-mass star enters a phase called "core helium burning" where energy production in the core increases due to the fusion of heavier elements such as helium into carbon and oxygen. The increase in energy production counterbalances the higher energy loss through radiation, maintaining a relatively constant luminosity. This equilibrium regulates the star's luminosity despite the increased energy output.
