Betelgeuse has been a favorite among amateur astronomers for many years. However you pronounce it, its unexpected dimming draws even more attention to this red supergiant variable star in Orion. It has a few cycles of variability. One of them occurs over a 2,170 day period, five times longer than its normal pulsation period. Betelgeuse has been a favorite among amateur astronomers for many years. However you pronounce it, its unexpected dimming draws even more attention to this red supergiant variable star in Orion. It has a few cycles of variability. One of them occurs over a 2,170 day period, five times longer than its normal pulsation period. Astronomy Phys.org – latest science and technology news stories
Is Betelgeuse actually a binary star?
