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Supergiants are bigger and more luminous than the red giants. Supergiants are stars that have a mass that is eight times more than the sun.
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How can Arcturus be cooler and more luminous than the Sun?
It is much larger and has a greater surface area than the Sun, so each unit of area can be cooler and less luminous than an equal area on the Sun.
Why do the giants have more moons than the terrestrial planets?
They are larger and so they have more gravity.
Why do these gas giants have more moons than the terrestrial planets?
They are larger and so they have more gravity.
Why do the gas giants have more moons than the terrestrial planets?
They are larger and so they have more gravity.
Explain how a red star can be more luminous than a bluish-white star?
By being far larger - a red giant/supergiant.
Is the star Rigel luminous?
Very!! It is about 66,000 times more luminous than our Sun
What are the mian characteristic of the gas giants?
they are much larger and more massive than earth and they do not have solid surfaces.
Which star is more luminous R136a1 or VY Canis Majoris?
R136a1 is the most luminous at about 8,700,000 times more than the Sun. VY Canis Majoris is only 450,000 times more luminous than our Sun.
Are giants hotter than white dwarfs?
Red giants are not hotter than white dwarfs. While red giants are much larger and burn more fuel, white dwarfs burn at a higher temperature.
Are blue stars more luminous?
Blue stars are more luminous than other main sequence stars but not necessarily brighter than giant and supergiant stars.
How can a cool star be more luminous than a hot star?
Luminosity is related to temperature and distance.A cool and thus less luminous star would be brighter than a more luminous star at a greater distance.Our Sun is a relatively cool star in comparison to say Rigel, but because it is closer it appears more luminous and brighter.
A full moon is more luminous than a half moon.?
yes
