A bunch of space questions.
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A bunch of space questions.

[From: ] [author: ] [Date: 12-08-13] [Hit: ]
BlueWhy are they even different in color while their all made of dam gases 3) Quasars are made from accretion disk right? stars too. Can a Quasar form from a stars accretion disk? If not why not?4) Phases of a star? some site says after red giant thing is red dwarf then white dwarf then super nova?......
1) When does actually a black hole form?
So much different information on many different sites D:
So far i got this tell me if its right of not if not then correct with pro blocks of text

Black holes come when 2 neutron stars meet and combine
1 neutron star gets too small
instantly from a super nova
Hyper nova
White dwarf getting small into neutron star then smaller into black hole

2)Star colors

Red , Yellow , orange , ( some site says green ) , Blue

Why are they even different in color while their all made of dam gases

3) Quasars are made from accretion disk right? stars too. Can a Quasar form from a star's accretion disk? If not why not?


4) Phases of a star? some site says after red giant thing is red dwarf then white dwarf then super nova? that's real?

That's all for now :D.

Note:READ ME: LARGE PRO WALLS AND BLOCKS OF TEXT NEEDED Thanks
Winner gets lolipop

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1) A black hole typically forms when a star with a large mass reaches the end of it's life and forms a Red Giant the core of the star collapses, causing an explosion called a Supernova, if the core survives it may form a Neutron Star depending on how massive it is, this Neutron Star collapses further and forms a Black Hole.

2) The colours mostly depend on heat, last time I checked red/orange stars are the coolest, white/blue stars are the hottest.

3) I don't have a clue about this one, sorry.

4)A star remains in it's Main Sequence stage for most of it's life, eventually it develops into a Red Giant, after that the outer layers of the star drift away from it and forms a Planetary Nebula, the remains form a white dwarf, a much smaller more massive version of the star. The White Dwarf becomes slowly dimmer and cooler until it cools into a Black Dwarf.

However for much more massive stars the sequence is different, they too have a Red Giant stage, but instead of the outer layers drifting off, the core collapses causing an explosion called a Supernova. The Supernova causes a shock wave which blasts off outer layers of the star, sometimes the core remains intact and sometimes this remaining core contracts to become a Neutron Star, if this Neutron Star is more massive than 3 solar masses it has a good chance of collapsing further and forming a Black Hole

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1. When a massive star explodes and the remaining mass collapses.
A black hole could form from 2 neutron stars colliding, but that's not the only way.
White dwarfs are not massive enough to form a black hole.

2. Temperature.

3. Quasars are not stars, they are active galactic nuclei.

4. No reliable science site says a white dwarf becomes a black hole. Red giant becomes white dwarf. If there is a companion star, the white dwarf could supernova after accreting enough mass.
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