The Virtual Telescope Project 2.0

Daily Archive: September 4, 2012

M 57, the "Ring" nebula

nebula

M 57 – Lyr

  With no doubts, Messier 57 is the  most famous planetary nebula in the sky. It is often called the “Ring” nebula, for obvious reasons. It was discovered by A. D. de Pellepoix in...