Life cycle of a star

• Nebula contains hydrogen and helium gas
• Nebula is a cloud of interstellar gas and plasma
• First stage of life

  answer: the protostar
• The protostar - ball of gas and dust that is pulled together by gravity
• The protostar is a?

  Ball of gas qnd dust that is pulled together by the gravity
• Nuclear fusion
• Small mass

  1. Protostar 2. Main sequence 3. White dwarf 4. Black dwarf
• Medium mass

  • Protostar
  • Main sequence
  • Red giant
  • Black dwarf
• Large mass

  • Protostar
  • Main sequence
  • Super giant
  • Super nova
• Super nova

  • Neutron star
  • Black hole
• Protostar - Stars begin to form from clouds of gas in space
• White dwarf is a small very dense star that is typically the size of a planet.
• Black dwarf is a very small cooled remnant of white dwarf that emits no detectable light.
• A red giant is a dying star in the final stages of stellar evolution
• Super giant is a very large star that is even brighter than a giant, often despite being relatively cool.
• A supernova is a massive explosion of a dying star.
• A neutron star is the collapsed core of a massive supergiant star,
• A black hole is a place in space where gravity pulls so much that even light can not get out