Table of Contents
What is the lifecycle of a massive star?
Step 1 – Green – A cloud of gas and dust collapses due to gravity, creating a protostar. Step 2 – Blue – Gravitational energy powers the young star until… The main sequence star may live millions or even billions of years. Step 4 – Red – The star expands into a red giant when the star’s hydrogen level drops.
How is a massive star’s stage 4 different from an average star’s stage 4?
The massive star is much bigger in its expanding stage. (A Red Supergiant,below). Stage 4 – The core collapses in less than a second, causing an explosion called a Supernova, in which a shock wave blows of the outer layers of the star. (The actual supernova shines brighter than the entire galaxy for a short time).
What is the life cycle of a large mass star?
The life cycle of a star is determined by its mass. The larger the mass of a star the shorter will be its life cycle. The life of a star ranges from a few million years to a billion years, depending on the mass. It is believed that stars are born from collapsing dense clouds of dust and gas found in spiral galaxies.
What is the first stage of a star?
The first stage in the birth of a star is called a protostar. This is where the majority of the stellar material has collected together in ball in the center, but there is a huge disk of gas and dust obscuring it from our view.
What are the stages of a star?
Stage 1 – Giant molecular cloud: A star begins life as a large cloud of gas. A region of high density within this cloud condenses into a huge globule of gas and dust and contracts under its own gravity. Stage 2 – Protostar: A region of condensing matter begins to heat up and starts to glow forming protostars. This phase lasts about 10 million years.
What are the stages of stars?
Stars go through many stages throughout their lives in in our Universe. Stage one: Stars form from mainly gas and dust. Stage two: Gravity pushes the dust particles causing them to spiral together, the gravitional energy is converted into heat energy causing the temperature to rise.