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The rotation period depends on Betelgeuse's size and orientation to Earth, but it has been calculated to take 36 years to turn on its axis, inclined at an angle of around 60° to Earth. [ 17 ]
If Betelgeuse were too close to Earth, the eventual supernova could cause an extinction here on Earth. However, even at 530 light-years distance, our planet will still be safe from the eventual ...
Solar radius is a unit of distance used to express the size of stars in astronomy ... the approximate distance between Earth and the ... Betelgeuse: 764 [10] 531,500,000:
The position marks are entered inward from the distance marks according to their declinations, connected by lines (doted when positive) representing the arcs of the declinations viewed edge-on. This list covers all known stars, white dwarfs, brown dwarfs, and sub-brown dwarfs within 20 light-years (6.13 parsecs) of the Sun. So far, 131 such ...
The arc is about 6.5 billion light-years away from Earth. Without gravitational lensing, ... Many are red supergiants, like the star Betelgeuse in Earth's galaxy. The galaxy they were found in was ...
Aside from the Sun, observed from Earth, stars are exceedingly small in apparent size, requiring the use of special high-resolution equipment and techniques to image. For example, Betelgeuse , the first star other than the Sun to be resolved, has an angular diameter of only 50 milliarcseconds (mas).
Abell 370, a galaxy cluster located nearly 4 billion light-years away from Earth features several arcs of light, including the "Dragon Arc" (lower left of center). ... similar to Betelgeuse in the ...
Distance: 4.344 ± 0.002 ... The Sun would appear as a white star of apparent magnitude +0.5, [136] roughly the same as the average brightness of Betelgeuse from Earth.