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Ok its for a projects and I need some info. I can't find much. Please help. Red giants, the life cycle of stars, black holes, white dwaves, mail sequence stars, quasars, irreglar galaxys, spiral galaxys, black dwarves, neutron stars, H-R diagram, galaxys, constellations. Please help me if you can

2006-10-10 04:19:38 · 9 answers · asked by Amanda W 1 in Science & Mathematics Astronomy & Space

9 answers

Black holes are incredibly dense stars that have such a strong gravitational pull that not even light can escape them. Black dwarfs are white dwarfs that have run out of energy. A red giant is a very old, very cold, and very BIG star. They are, of course, red. Novae are when giant or supergiant stars explode.

2006-10-10 04:22:13 · answer #1 · answered by Kaeliy 1 · 0 0

Among the population of celestial bodies; red giants.main sequence stars [our sun] white dwarfs,neutron stars and black holes. the first four follow a logical sequense. The last ,A black hole is an anamoly among celestial bodies and probably does not exist.
A red giant is a large[20 solar mass ] star in the final years of life.
It will soon collapse and explode into a super nova.
What will be left is a small [100 km dimeter]star we call a white dwarf,It has a mass of aprox. 1.5 to 2 solar masses.It has an enormous gravitational field,the size is maintained by electron-proton pressure.
when the white dwarf accretes from the surrounding space the gravity increases ,when the electron pressure is overcome it causes a displacement of some of the space supporting it and collapses to a neutron star [approx. 10 km in diameter] the surface gravity has increased enarmously. As it accretes matter from the surounding space the surface gravity increases until[as theory has it] the neutron star collapses to a black hole, all the remmaining space is displaced from theinterior of the neutron star.
The mystery begins here ! The star,white dwarf and neutron star all have upper and lower limits all contain space that supports their existence,
The black hole has no upper or lower limit and contains no space to allow it to exist.It would be an intense gravitatioal field whose surface would absorb anything but nothing could escape not even light hence black hole.
If black holes do not exist what are we gonna do with a neutron star? The orbital velocity of an object orbting an black hole[at the surface] is "C" the speed of light,witch cannot be exceeded. The mass of a black hole [unlike the earth] is consentrated at the center therfore anything that penitrates the surface would have to exceed "C" [which is impossible] additionally the black hole would contain no space to separate the center from the surface [3 km]
Therfore massive stars, our sun,white dwarfs and neutron stars are the only entities required to give us the existence we perceive

The collapsing neutron starm what? This is another question!

2006-10-11 04:31:37 · answer #2 · answered by Billy Butthead 7 · 0 0

Black holes r balls of vaccum that sucks anything in it's path, even light.
White dwarfs r the parts of the exploded red giants. It shrinks and have high density and mass and r white.
The helium exerted by all the stars form into a red giant.


I am also much interested in astronomy. If u have any questions, plz ask me at sheenawakefield@yahoo.co.in

2006-10-10 06:05:49 · answer #3 · answered by Anonymous · 0 0

crimson Giants are previous stars who've enhanced very much, in spite of if the nuclear middle keeps to be a similar. while the great call will become so great that it won't be able to help itself, certainly one of two issues occurs. frequently, The outer shell dies off, by way of fact the gravity of the middle can now not carry it. This will become a white dwarf. If the great call's middle mass became sufficiently great, the outer shell could cave in in on itself, starting to be quite dense without lots floor area. this could be a black hollow.

2016-11-27 19:12:05 · answer #4 · answered by ? 4 · 0 0

I can find easy to read info looking up each of these topics on either Yahoo, Google, or Wikipedia in just a few minutes. Come on, do your own bloody homework, it's not at all hard to find the info.

2006-10-10 05:10:34 · answer #5 · answered by Anonymous · 0 0

ok a cloud of hydrogen an helium colapses into itself and spins and burns brightly poof a star is born then when it dies it expands drasticly into a red gian or super red giants, red giants turn into white dwarfs,super red gints colaps and blow up into super nebulas and may colapse into black holes.

2006-10-10 15:16:38 · answer #6 · answered by Anonymous · 0 0

There is alot of info available, and many textbooks as well. What specifically are you looking for?

2006-10-10 04:21:12 · answer #7 · answered by artisticallyderanged 4 · 0 0

all of the above are all over the web not enough space here to cover one much less all !

2006-10-10 04:21:15 · answer #8 · answered by Anonymous · 0 0

You don't need an answer, you need a book. Or wikipedia.

2006-10-10 04:59:27 · answer #9 · answered by campbelp2002 7 · 0 0

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