NGC 7293 Helix Nebula

David Trotter

Australia

STL6303e CCD and a GSO RC8 Telescope, mounted on an AP900

At just 300 light years away this planetary Nebula is pretty close. On a good day(night), you can look through the centre of this planetary nebula and image galaxies on the other side, through a trillion km long tunnel. HA data combined with RGB

2014-11-12T00:00:00