The Cederblad 214 (other names: Sharpless 2-170, squirrel nebula) is on the left half of the image. The right half is occupied by the NGC7822. Both are emission nebulae's. If seen as a single entity it seems  like the nebula of the rosette or the IC 1396. All these nebulae form around young stellar clusters. The responsible star here is the Berkeley 59, aged no more than a few million years. This formation belongs in the constellation Cepheus 3,000 light years from us. The whole system is a difficult task for observation, at least for a 20''  telescope. Observers said that they saw it with smaller telescopes and using  b-Ha filter under dark sky.

   This system includes one of the hottest stars, the BD + 66 1673, with a surface temperature of about 45,000 K and absolute luminosity about 100,000 times that of our sun. This star is one of the mainly responsible for the formation of types of 'Pillars of Creation-type formations". In these "pillars"  the stars formed, but stellar winds and radiation 'eating' the dast and clouds (photoevaporation, as early said).

 

Technical data :

 

Ha: 14x1800s, bin1

RGB 8x900s, each bin1

Mount AP Mach1 GTO

Telescope: Takahashi FSQ106 ED using reducer x0.73

Camera QSI 683, at -20 C

 

July 2014 in Skyros Island, Greece.