NGC6826, The Blinking Planetary

Last processed image from the last season!! Also known as Caldwell 15.

Only about 4hrs of exposure. Discontinued because of the flexure when shooting to the Western sky.

A weird combination of colors! Core is as Hubble palette; SII for red, Ha for green and OIII for blue. Outer halo bicolor HaOIIIOIII.

Full frame

Crop