June 19, 2023 03:33 pm | Updated 03:34 pm ISTThe bright, red star Betelgeuse in the constellation Orion has shown some unexpected behaviour. But there are exceptions and some stars – dubbed variable stars – change in brightness. There are around 30 such variable stars visible with the naked eye, although it requires care to notice their variation in brightness. Betelgeuse, the seventh brightest star in the sky (discounting the Sun), is the brightest of the variable stars. A nearby, bright supernova is the kind of event astronomers live for – but which few of us will ever get to see.

Source: The Hindu June 19, 2023 10:06 UTC