enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Difference between a red giant and red supergiant? - Physics...

    www.physicsforums.com/.../difference-between-a-red-giant-and-red-supergiant.805502

    Red giants and red supergiants form when a star runs out of hydrogen fuel in its core and starts fusing heavier elements. This causes the star to expand and cool, eventually turning into a red giant or a red supergiant depending on its mass. What is the lifespan of a red giant and a red supergiant? The lifespan of a red giant and a red ...

  3. Length of the life of a red supergiant. - Physics Forums

    www.physicsforums.com/threads/length-of-the-life-of-a-red-supergiant.610337

    1. What is a red supergiant? A red supergiant is a type of star that is in the late stage of its life cycle. It is typically a large, cool, and luminous star that has expanded and evolved from a main sequence star. 2. How long does a red supergiant live? The length of a red supergiant's life can vary, but on average, it can live for about 50 ...

  4. Exploring Red Supergiants: Size Limits and Birth Possibilities

    www.physicsforums.com/threads/exploring-red-supergiants-size-limits-and-birth...

    Red Supergiants are a type of star that are among the largest and brightest in the universe. They are typically 10 to 20 times more massive than our sun and can be up to a billion times larger in size. What is the lifespan of a Red Supergiant? The lifespan of a Red Supergiant varies, but on average they can live for about 10 million years.

  5. Discovering the Truth About Antares: From Young Red Supergiant to...

    www.physicsforums.com/threads/discovering-the-truth-about-antares-from-young...

    Antares is currently in the red supergiant phase of its life cycle. As it exhausts its nuclear fuel, it will undergo significant changes in temperature and luminosity. The transition to a blue giant involves the shedding of outer layers and a shift in the star's core processes, leading to a hotter and more compact state.

  6. We watched a red supergiant explode to ordinary type II supernova

    www.physicsforums.com/threads/we-watched-a-red-supergiant-explode-to-ordinary...

    In summary, the first suspicious activity of SN 2020tlf, a red supergiant star in the NGC 5731 galaxy, was noted 130 days prior to its supernova event. This discovery was made by lead study author Wynn Jacobson-Galán, a National Science Foundation Graduate Research Fellow at University of California, Berkeley.

  7. Expansion of a star to become a red giant - Physics Forums

    www.physicsforums.com/threads/expansion-of-a-star-to-become-a-red-giant.1066613

    The energy at the star’s surface becomes far more dissipated, causing the star's bloated surface to cool, turning from white or yellow to red. A red giant is formed. This process can take hundreds of millions of years and applies to intermediate mass stars (with a mass greater than 80% and less than 800% of the Sun’s mass), which then go on ...

  8. Which star is the closest red giant to Earth according to The...

    www.physicsforums.com/threads/which-star-is-the-closest-red-giant-to-earth...

    They fixed it with a search and replace, adding "super". I'm not sure that it is the nearest red supergiant to Earth. Antares is at about the same distance (5.9 mas parallax), and Alpha Persei , unequivocally closer, is a supergiant in the red giant evolutionary stage, but is yellow.

  9. Will Big Stars Turn Into Red Supergiants or Red Giants? - Physics...

    www.physicsforums.com/threads/will-big-stars-turn-into-red-supergiants-or-red...

    For a star with a mass 8 times greater than the sun, it will take around 100 million years to become a red supergiant. 4. What happens to a star after it becomes a red supergiant or red giant? After a star becomes a red supergiant or red giant, it will continue to fuse heavier elements in its core until it can no longer sustain nuclear reactions.

  10. How Long Do Red Giant Stars Last? - Physics Forums

    www.physicsforums.com/threads/how-long-do-red-giant-stars-last.566282

    The average lifespan of a red giant star is about 1 billion years. However, this can vary depending on the initial mass of the star. How does a red giant star form? A red giant star forms when a star runs out of hydrogen fuel in its core and begins to fuse helium. This causes the star to expand and become a red giant.

  11. The star Betelgeuse going supernova soon? - Physics Forums

    www.physicsforums.com/threads/the-star-betelgeuse-going-supernova-soon.405304

    In summary, Betelgeuse is a red supergiant star located approximately 640 light-years from Earth and is the ninth brightest star in the night sky. It is expected to go supernova soon, possibly within the next millennium, and will be at least as bright as the full moon for six weeks.