====== 4. Evolution of a star ======

===== - Life of single stars =====

==== - Sunlike stars ====
{{:courses:ast301:sunhrd.webp?nolink|}}

  - An interstellar cloud
  - Collapsing cloud fragment
  - Fragmentation stops
  - Becoming a protostar
  - Evolving as a protostar
  - A newborn star
  - In the main sequence
  - The subgiant branch
  - The red-giant branch
  - Helium flash
  - Back to the giant branch
  - A planetary nebula
  - A white dwarf

==== - Massive stars ====
{{:courses:ast301:massive-hrd.webp?nolink&650|}}
==== - Star clusters ====
{{:courses:ast301:cluster-hrd.webp?nolink|}}
==== - Variable stars ====
{{:courses:ast301:var-hrd.webp?nolink&650|}}
===== - Scaling laws =====

===== - Compact stars =====

==== - White dwarfs ====

==== - Neutron stars ====

==== - Black holes ====

===== - Life of binary stars =====