NGC 246.

NGC 246 (aka Skull Nebula or Caldwell 56) is a planetary nebula in the constellation Cetus. The nebula is roughly 1,600 light-years away. The nebula is the dusty remnant of a stellar explosion, during which a sun-like star expelled its outer layers, leaving behind a glowing white dwarf star. At the centre lies a triple star system. The nebula is about 6600 years old. It measures about 2 light years and is expanding at around 39.5km/s

 

Canon EOS 6D

Celestron C11 at f6.5 using a Lumicon focal reducer, cropped.

Tracked on a Sky-Watcher AZ-EQ6.

Guiding: None

Acquisition: Intervalometer

Polar Alignment: Polar Scope

Exposure: 114 x 30sec @ ISO-6400 (RAW)

Filter: IDAS Light pollution LPS-P2 2.00"

Imaged from suburbia on the 9th October with a 32% lit Moon.

 

Done