Astronomy:List of nearest supergiants

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This is a list of the nearest supergiant stars to Earth, located at a distance of up to 1,100 light-years (340 parsecs) from Earth. Some of the brightest stars in the night sky, such as Rigel and Antares, are in the list.

While supergiants are typically defined as stars with luminosity classes Ia, Iab or Ib, other definitions exist, such as those based on stellar evolution.[1] Therefore, stars with other luminosity classes can sometimes be considered supergiants.

List

See also

Notes

  1. Applying the Stefan–Boltzmann law with a nominal solar effective temperature of 5,772 K:
    (5,7725,250)4103.07=41.4 R(5,7725,250)4103.17=46.4 R.
  2. Applying the Stefan–Boltzmann law with a nominal solar effective temperature of 5,772 K:
    (5772/4,150)4*5,500=143.46 R
  3. Using Alpha Aquarii's measured angular diameter at 3.066±0.036 milliarcseconds (mas),[52] together with its distance to Earth of 211.9 parsecs (or 691 light-years),[22] its physical size can be calculated. It is divided by 0.0046491 to convert to AU from 2 R, and the given value is divided by 2 to convert to the Sun's radius.
  4. Applying the Stefan–Boltzmann law with a nominal solar effective temperature of 5,772 K:
    (5,77220,800)447,039=16.7 R.

References

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