We wanted to try our new ASKAR FRA400 that we installed a month ago. The weather was not great these last few weeks plus we had a number of issues to work through...
We used a Radian Triad ultra filter to try to get close to NB an image as we could. One day I'll figure out the processing. I cant do OSC for the life of me...
I hope you enjoy and as always, comments and critiques are very welcome.
From Wikipedia:
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 east of IC 1396A. (In the Spitzer Space Telescope view shown, the massive star is just to the left of the edge of the image.) The entire IC 1396 region is ionized by the massive star, except for dense globules that can protect themselves from the star's harsh ultraviolet rays.[[i]
citation needed]The Elephant's Trunk Nebula is now thought to be a site of star formation, containing several very young (less than 100,000 yr) stars that were discovered in infrared images in 2003. Two older (but still young, a couple of million years, by the standards of
stars, which live for billions of years) stars are present in a small, circular cavity in the head of the globule. Winds from these young stars may have emptied the cavity.[[i]
citation needed]The combined action of the light from the massive star ionizing and compressing the rim of the cloud, and the wind from the young stars shifting gas from the center outward lead to very high compression in the Elephant's Trunk Nebula. This pressure has triggered the current generation of protostars.
[2][3]
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