Zenfolio | RASC Victoria Centre | Dan Posey | Iris Nebula (NGC 7023)
Uploaded 5-May-15
Taken 5-May-15
Visitors 167

57 of 125 photos
Photo Info

Dimensions3312 x 3112
Original file size3.32 MB
Image typeJPEG
Color spacesRGB
Iris Nebula (NGC 7023)

Iris Nebula (NGC 7023)

This is 1h50m of ten minute exposures of the Iris Nebula captured with a QSI583c through a Televue 127is refractor. The region is quite interesting for a variety or reasons, but perhaps the most striking is the wide dynamic range between details in the core of the reflection nebula, and the surrounding dust features. The blue core of the nebula is formed by reflections from the central star (which is of course also blue). The region is about six light years across.

I stacked an processed the image in Pixinsight, and this is a fairly cropped image, as the original has a much larger field of view. I tried to tone down my previous attempt at this to maintain smoother transitions between the various features, and avoid noise. Unfortunately two hours just isn't long enough to really provide the depth on this given our semi-light polluted location.