0
How can a red giant become brighter if it now has a lower surface temperature?
Wiki User
∙ 11y ago
how can a red giant star become brighter if it now has a lower surface temp
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is the surface temperature of a red giant?
The surface temperature of a red giant is, at most, 5000 Kelvin.
What color star has the highest surface temperature?
Red stars have the coolest surface temperature. Blue color stars have the highest surface temperature. The Sun belongs to the main sequence stars.
Are stars with higher surface temperature older in age?
Some new stars are brighter than older stars, since it's at that period that the star begins to shrink. But as the star grows older, it will become a red giant and become larger and brighter. Finally, it is at it's brightest when it explodes in a supernova. For brown dwarfs, though, there is a violent first million years and then an uneventful and faint couple billion years. For big stars, there are eruptions at the surface very often, which gives them a very bright life of a couple million years.
What is Jupiter's surface composition?
Jupiter has no surface. It is a gas giant.
The sun will eventually use up its hydrogen fuel and become what?
When the sun exhausts the hydrogen in its core and become a red giant.
What is the surface temperature of a red giant?
The surface temperature of a red giant is, at most, 5000 Kelvin.
Will a super red giant live longer than a red giant star and which will burn hotter?
A supergiant is brighter than a red giant. That means it spends its energy faster, and lives less. To burn its energy faster, it must be hotter in its nucleus. That doesn't necessarily mean that its surface temperature is faster (rather, it will usually be bigger, and have a larger surface to irradiate).
Why will the color of the sun change from yellow to red when it become a giant?
Color is related to surface temperature, and a "red giant" is cooler than a main sequence, medium-sized star like the Sun.
Is a red super-giant hot?
The colour of a star is a good measure of the surface temperature.
What is the color and the temperature of the star Alnilam?
Alnilam is a blue-white super giant star, with a surface temperature of around 27,000 Kelvin.
Why do some dwarf stars appear brighter than giant stars?
Because they are closer or actually brighter.
Why would one red giant appear brighter than the other?
Three possibilities: It is brighter (some are brighter than others), it is bigger, or it is closer to earth.
What color star has the highest surface temperature?
Red stars have the coolest surface temperature. Blue color stars have the highest surface temperature. The Sun belongs to the main sequence stars.
How hot is the great red sun?
According to Wikipedia, a red giant has a surface temperature of 5000 K or less.
What is the surface temperature of Neptune?
Neptune doesn't have a surface, because is it a gas giant. The average temperature of Neptune is around -218°C (-360.4°F).
Is a white dwarf star brighter then a red giant?
No, it is much less bright.
What is the surface temperature of HD 66141?
The Wikipedia lists the surface temperature as 4305 ± 15 kelvin. This is cooler than our Sun (giant stars are typically cooler than our Sun). Check the Wikipedia article if you want the sources.
