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Why is there a lower mass limit of 0.08 solar-masses for main-sequence stars?
Wiki User
∙ 8y ago
Below about 0.08 solar masses an object will not be able to ignite nuclear fusion. There may be small amounts of deuterium fusion, but it is not sustainable. Objects between 0.08 solar masses and about 13 Jupiter masses are called brown dwarfs.
Wiki User
∙ 8y ago
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If the sky is the limit why do you reach for the stars?
So you know that you are still within your limits.
What is a stars brightness known as?
A star's brightness is known as its magnitude. Stars with lower magnitude numbers are brighter than stars with a higher magnitude number.
How are stars on the upper left end of the main sequence different from those on the lower right end?
The main sequence is a map of star brightness against their temperature. Stars that lie on the main sequence in the top left are the high mass stars. Cooler, smaller stars lie near the line at the lower right.
What is the upper limit of stars that the unaided eye can discern on a moonless night in a rural area?
Stars are measured on a scale of apparent luminosity. The higher the number, the fainter the star. The brightest stars / planets are around -2 on this scale. +5.5 is about the limit in a rural, unpolluted, still sky with good, unaided vision. The Romans used to measure someones eyesight by asking them to draw the star cluster pleiades (M45 if I remember correctly) which contains stars of apparent magnitude from +3 and fainter.
Are blue stars younger or older?
Blue stars can be expected to be young as they do not last as long as other stars do, often only a few million years. That said, a lower mass star could still be just as young.
Is there a limit for the stars?
Yes, there are limits for stars - limits to lower and upper mass, longevity, size, etc. Given the mass of the universe a limit for the number of extant stars would also exist. During stellar collapse at end of a star's life there are some well-studied limits answering to degeneracy pressure, like the Chandresekhar limit, the Oppenheimer-Volkoff limit, etc., which prevent further collapse until a certain mass limit is exceeded (perhaps the last limit being quark degeneracy pressure before further collapse into a black hole). For further examination of a given limit, the limit in question would need to be identified.
What is the limit beyond which stars suffer internal collapse called?
Chandrashekhar limit
In super Mario 64 what do you do if you have 105 stars?
Get the rest of the stars there are 15 more.
If the sky is the limit why do you reach for the stars?
So you know that you are still within your limits.
Why do yellow stars change into reads star?
their temperature gets lower! hot stars--- blue or white average stars--yellow or orange cooler stars: reddish
Why is there an upper limit to the mass of neutron stars?
There is an upper limit to the mass of neutron stars because if the neutron star is too massive, neutrons would be crushed by the gravity of the neutron star, and the neutron star would collapse into a black hole.
What are tattooed on victoris beckhams lower back?
five stars
What is a stars brightness known as?
A star's brightness is known as its magnitude. Stars with lower magnitude numbers are brighter than stars with a higher magnitude number.
Why can't we see the very lowest mass stars?
we cant see lower mass stars because were blind.... :)
How are super-Giants are formed?
Supergiants develop when massive main-sequence stars run out of hydrogen in their cores. They then start to expand, just like lower-mass stars, but unlike lower-mass stars, they begin to fuse helium in the core almost immediately.
Why can't you see lower mass stars?
You cant see lower mass stars because of the Earth's rotation is at about 0.005 miles per hour to complete the whole enitre turn for a day, the lower mass stars are blurred out because they are actually somewhat an illusion to human kind, if you get a electronic telescope you will be able to see how it is an illusion.
How are stars on the upper left end of the main sequence different from those on the lower right end?
The main sequence is a map of star brightness against their temperature. Stars that lie on the main sequence in the top left are the high mass stars. Cooler, smaller stars lie near the line at the lower right.
