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Betelgeuse's color may have changed from yellow (or possibly orange; i.e. a yellow supergiant) to red in the last few thousand years, based on a 2022 review of historical records. This color change combined with the CMD suggest a mass of 14 M ☉, an age of 14 million year and a distance from 125 to 150 parsecs (~400 to 500 light years). [12]
Based on this size of the stars, astronomers determined Betelgeuse sits just 530 light-years from Earth — about 25% closer than expected. ... However, even at 530 light-years distance, our ...
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. ... Betelgeuse: 408 [14] ...
This number is likely much higher, due to the sheer number of stars needed to be surveyed; a star approaching the Solar System 10 million years ago, moving at a typical Sun-relative 20–200 kilometers per second, would be 600–6,000 light-years from the Sun at present day, with millions of stars closer to the Sun.
Even in nearby galaxies, such as Andromeda, which is about 2.5 million light-years away, astronomers can observe stars one by one. ... similar to Betelgeuse in the constellation of Orion.
light-year: 2.254 61 × 10 −8 ... Solar radius is a unit of distance used to express the size of stars in astronomy relative to the Sun. ... Betelgeuse: 764 [10 ...
Astronomers pointed powerful telescopes at the red giant star Betelgeuse, confirming theories that the star had not almost exploded a few years ago, but it did experience a dimming event.
Light years Apparent magnitude Betelgeuse: α Orionis 548 0.50 Rigel: β Orionis 863 ... it is at approximately the same distance, at 1600 light-years from Earth.