elephants trunk

The Elephant's Trunk nebula is a concentration of interstellar gas and dust within the much larger ionized gas region IC 1396 located in the constellation Cepheus about 2,400 light years away from Earth.[1] The piece of the nebula shown here is the dark, dense globule IC 1396A; it is commonly called the Elephant's Trunk nebula because of its appearance at visible light wavelengths, where there is a dark patch with a bright, sinuous rim. The bright rim is the surface of the dense cloud that is being illuminated and ionized by a very bright, massive star (HD 206267) that is just to the west of IC 1396A.

Date of shoot: 6/9/14,17/9/14

Ha: 26 subs @900s 1*1

OIII: 10 subs @900s 2*2

SII: 21 subs @ 900s 1*1

Camera Starlight Express SXVR-H694

Sample Rate 0.98 asp at 1*1 , 1.97 asp at 2*2

Filter Wheel : Starlight Express Mini Wheel

Mount : Avalon fast Linear

Scope: Orion Optics UK AG10

Filters : Astrodon , Ha 5nm, OIII 3nm, SII 5nm

Done