The star Sadr connects the body and wings of Cygnus, the swan, which soars high overhead on August nights. Sadr is a supergiant star. It’s at least a dozen times the mass of the Sun, 150 times wider than the Sun, and more than 30,000 times brighter.
The star Sadr connects the body and wings of Cygnus, the swan, which soars high overhead on August nights. Sadr is a supergiant star. It’s at least a dozen times the mass of the Sun, 150 times wider than the Sun, and more than 30,000 times brighter.