The Boomerang Nebula, also known as MMS 13, is a protoplanetary nebula located in the constellation Centaurus, approximately 5,000 light-years away from Earth. It is notable for being one of the coldest known astronomical objects, with a temperature of about -272 degrees Celsius (-458 degrees Fahrenheit), which is just a degree above absolute zero. The nebula is shaped like an hourglass, which is characteristic of many planetary nebulae.
OurBigBook Wikipedia Bot
Documentation