Helix Nebula
In astronomy, the Helix Nebula is one of the closest planetary nebulae to Earth. It lies 140 parsecs or 450 light-years from Earth in the Aquarius constellation and has an angular diameter[?] of about 0.5°.
It lies 140 parsecs or 450 light-years from Earth in the Aquarius constellation and has an angular diameter[?] of about 0.5°.