Elephant's Trunk nebula reprocessed

Weather doesn't support any imaging, so I reprocessed an older image, the Elephant's Trunk nebula.

Elephant's Trunk

A detail in IC 1396 emission nebula

Image in mapped colors from the light emitted by ionized elements. 

Red=Sulfur, Green=Hydrogen and Blue=Oxygen.

The elephant's Trunk nebula is a concentration of interstellar gas and dust in the star cluster IC 1396.

This ionized gas region locates in the constellation Cepheus about 2400 light years away.

Formation is coursed by a stellar wind, radiation pressure, from a group of massive young stars.

Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.

A detail

At the time of imaging, the seeing was very good, HWFM ~2.5

A wide field image of the area

The Trunk formation at bottom middle

More info about this image HERE.

A Gargoyle of the sky

A Gargoyle?..    See HERE

Technical details

All technical details are with an original image HERE