WebDec 20, 2024 · Rigel is 860 light-years / 265 parsecs away from Earth and has a radius of about 75 times greater than the Sun. The diameter of Rigel has been estimated to be … WebJun 14, 2011 · Best Answer. Copy. Sirius A is the brightest star in the sky after our sun. Its not the closest star, but is one of the closest. It also has a high luminosity, with a white spectral class and ...
HR Diagram.pdf - Khan
WebOct 7, 2016 · The larger star Rigel dwarfs our own sun (ringed) into insignificance. ... the surface temperature of VY Canis Majoris is cooler than our sun at around 3,000C - compared to our star's 5,600C. WebDec 16, 2024 · Betelgeuse's diameter is approximately 767 million miles (about 1.2 billion km) and has a mass between 10 and 20 times that of the Sun. If Betelgeuse was in our solar system, its circumference ... lyndon harris 6kbw
Epsilon Eridani Information - ThoughtCo
Within Orion we find two immense stars, Rigel and Betelgeuse, apparently at diametrically opposite periods in a star's existence. In Rigel (the "left leg of the giant"), we find a star apparently reaching the prime of its life. It is the seventh-brightest starin our sky and is a true supergiant: a blazing blue … See more Betelgeuse was much in the news at this time last year, because it was undergoing an unusual dimming. Because of its irregular pulsations, it was well known that Betelgeuse could … See more So, what was the reason for the "Betelgeuse brownout?" On Aug. 13, 2024, the Harvard Smithsonian Center for Astrophysics … See more Stars produce their energy by fusing hydrogen into helium deep within their cores. When a star accumulates sufficient helium in its core, its … See more http://www.astronoo.com/en/articles/sizes-compared-planets-stars.html WebSep 25, 2011 · Rigel is 85,000 times as bright as the Sun and is 70 times larger than the Sun. The radiation from this star is 66,000 times more … lyndon green grayshott