the radius of a star that has a surface temperature of 27,000K and is 10000 times...

Question

Question

the radius of a star that has a surface temperature of 27,000K and is 10000 times brighter than the sun radius is ___ RSun?

Answer 1

Answer #1

Answer 2

Similar Homework Help Questions

6. The bright star Arcturus in the constellation Boötes has a surface temperature about 0.74 times...

6. The bright star Arcturus in the constellation Boötes has a surface temperature about 0.74 times that of the Sun. Its luminosity is about 170 times that of the Sun. (a) What is Arcturus’ radius compared to the radius of the Sun (in units of solar radii, ?⊙)? (b) What type of star is Arcturus (a dwarf, a giant, or a supergiant)? Explain your reasoning.
The brightest star in the northern celestial hemisphere has a surface temperature of about 4300 K...

The brightest star in the northern celestial hemisphere has a surface temperature of about 4300 K and it is 170 times more luminous than the Sun. Calculate the radius of the star in units of the radius of the solar radius (round the result to the nearest integer) In the calculation, you may assume that the Sun has a radius of 7E8 meters and a luminosity of 3.8E26 watts.
Sirius B is a white star that has a surface temperature (in kelvins) that is four...

Sirius B is a white star that has a surface temperature (in kelvins) that is four times that of our sun. Sirius B radiates only 0.040 times the power radiated by the sun. Our sun has a radius of 6.96 108 m. Assuming that Sirius B has the same emissivity as the sun, find the radius of Sirius B. RsB =

Imagine we find a star that has the same radius as the Sun, but its temperature...

Imagine we find a star that has the same radius as the Sun, but its temperature is 9.6 times greater. That star should be _____ times as luminous as the Sun. Suppose we find a planet with an orbital period of 200 days around a star with the same mass as the Sun, but only 75 percent as luminous. What is the planet’s semi-major axis, in AU?
Betelgeuse, a bright red star in the constellation Orion, has a luminosity that is 100,000 times...

Betelgeuse, a bright red star in the constellation Orion, has a luminosity that is 100,000 times that of the Sun However, the surface temperature of Betelgeuse is only 3000 K. Assuming that the emissivity of stars is 1, find the radius of Betelgeuse.
A star radiates 3.75 times less power than the Sun. What is the ratio of the...

A star radiates 3.75 times less power than the Sun. What is the ratio of the temperature of the star to that of the Sun? Assume the star and the Sun have the same radius.

Star A is 4 times brighter than Star B. How many times hotter is Star A...

Star A is 4 times brighter than Star B. How many times hotter is Star A than Star B?
Star A is 3.2 times hotter than Star B. How many times brighter is Star A...

Star A is 3.2 times hotter than Star B. How many times brighter is Star A than Star B?
A certain bright star has a temperature of 10,600 K, and is believed to have a...

A certain bright star has a temperature of 10,600 K, and is believed to have a radius of order 70 times the radius of the Sun. At what orbital radius would a planet have a flux of radiation comparable to that on our Earth – ie – habitable like the Earth? At this stellar temperature, what colour does the star have?

Planet X has 20 times the mass of the earth and 3 times the earth's radius....

Planet X has 20 times the mass of the earth and 3 times the earth's radius. It orbits star Y at a distance of 8 AU, where 1 AU is the earth-sun distance. Star Y has twice the mass of our sun. (a) What is the orbital period of Planet X in years? (b) An astronaut has an earth weight of 120 lbs. What is her weight on the surface of planet X?