32 31 30 29 28 27 26 25 24
6 23


M57

 


M57 :Ring Nebula in Lyra

Imaged on 9/24/06


Scope: Takahashi MT160 (F6)
Mount: Losmandy G-11
Camera/Autoguider: SXV-H9c
Exposures: 12 x 5 minutes
Site: Palomar Mountain
Temp: 54 degrees, mild wind, excellent seeing

M57 is 1140 light years away. This planetary nebula is what remains from a white dwarf star that exploded 20,000 years ago. The gaseous halo is expanding at a rate of 16.5 miles/second.