Life cycle of a star
Storyboard Text
- Slide: 1
- The life cycle of a star
- Do you see the celestial tapestry behind me, adorned with twinkling stars? This is the tale of how these luminous wonders were born, and how the universe nurtured their radiant existence.
- Slide: 2
- The first stage: Nebula (star nursery)
- All stars are "born" in NebulasThey are called the "star nursery"
- When dense regions within the nebula, known as knots, accumulate enough mass in the form of gas and dust, they start to collapse under their own gravity, triggering the formation of a star.
- As the knot continues to collapse, the increasing pressure from gravity generates intense heat at its core, giving rise to a protostar - a hot, dense ball of gas and dust that will eventually become a star.
- When the core has sufficient heat to ignite infusion, a star is formed.
- Slide: 3
- Stage 2: Massive star
- Massive stars are stars with masses ranging from 8 to 50 times that of the sun (between 3 and 50 solar masses), significantly exceeding the size and mass of our own star.
- These stars are in the prime of life and are born from stellar nebulae. It has a surface temperature of around 40,000K
- The star remains steadfast, shining brightly for millions of years, until its hydrogen fuel is eventually depleted, having been fused into helium. At this point, the star exhausts its energy source, marking the end of its main sequence life, and begins to transform into a red supergiant, a new phase of its evolution.
Over 30 Million Storyboards Created
No Downloads, No Credit Card, and No Login Needed to Try!
