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  1. en.wikipedia.org › wiki › BetelgeuseBetelgeuse - Wikipedia

    Hace 5 días · It is usually the tenth-brightest star in the night sky and, after Rigel, the second-brightest in its constellation. It is a distinctly reddish, semiregular variable star whose apparent magnitude, varying between +0.0 and +1.6, has the widest range displayed by any first-magnitude star.

  2. Hace 4 días · Betelgeuse, second brightest star in the constellation Orion, marking the eastern shoulder of the hunter. It has a variable apparent magnitude of about 0.6 and is one of the most luminous stars in the night sky. Betelgeuse is a red supergiant star roughly 764 times as large as the Sun.

  3. Hace 1 día · Below are lists of the largest stars currently known, ordered by radius and separated into categories by galaxy. The unit of measurement used is the radius of the Sun (approximately 695,700 km; 432,300 mi). [ 1 ] The Sun, the orbit of Earth, Jupiter, and Neptune, compared to four stars.

  4. 28 de sept. de 2024 · full vod: https://www.youtube.com/watch?v=OdiCzcbCFew (1:21:00)ㅤ

  5. Hace 1 día · The red planet is now rising before midnight and can be seen in the sky before dawn. It’s getting brighter, as Earth sweeps up from behind Mars in the race of the planets around the sun.

  6. Hace 1 día · "Yellow" dwarfs such as the Sun are white, "red" dwarfs are a deep shade of yellow/orange, and "brown" dwarfs do not literally appear brown, but hypothetically would appear dim red or grey/black to a nearby observer.

  7. Hace 5 días · It will appear about 6% larger and 16% brighter than an average full moon (shown by the red circle), cross the sky from sunset to sunrise, and will produce large tides around the world.