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Main sequence
Ambrose Krajcik
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What kind of star is hot and has a very small radius?
north star
What is a star if you have to explain it to a six year old?
A star is a ball of gas that is very hot and very bright.
A star that is very hot but dim is a?
That might be a white dwarf.
Can you give an example of a hot star which is not very bright?
White dwarf stars are hot , but not very bright, because they are so small. An example is "Sirius B", the companion of "Sirius A", the brightest star in the sky.
Why are many of the detected extrasolar planets called hot-Jupiters?
Their masses are similar to Jupiter but they are very close to the central star therefore very hot.
What is a hot self-luminous shpere of gas?
star
What is a star in space?
A star is a luminous globe of hot gas that makes energy.
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.
What is the difference between luminous and non luminous?
-A non-luminous flame is when the air hole of the Bunsen burner is closed but a luminous flame is produced when the air hole is opened.-A luminous flame has an outer of orange colour and an inner of blue. A non-luminous flame has an outer of blue and an inner of orange.-A luminous flame produces soot while a non-luminous does not produce soot.-A luminous flame is weak and unsteady. A non-luminous flame is strong and steady.-A non-luminous flame is very hot while a luminous flame is not too hot.
What is the proof that the sun is a star?
It is hot and luminous. It has the same spectral qualities of other stars. It's chemical composition is the same as other stars. It's a star - We call our star the Sun.
Is a luminous flame a hot flame?
All flames are hot
Is piece of red hot iron a transparent translucent opaque Luminous or non-Luminous?
opaque
Is a luminous gas flame hot?
Yes, but not as hot as the blue one.
What do you call a tiny and very hot star?
It is called a neutron star.
What kind of star is hot and has a very small radius?
north star
What is one fact about a star?
They are very hot.
What is a star if you have to explain it to a six year old?
A star is a ball of gas that is very hot and very bright.
