IC 2177, the Seagull nebula in Narrowband adjusted HST palette. This shows only the "head" of the seagull (and is pretty much upside down).
Taken over three nights in January 2014, Hydrogen Alpha 5 and a quarter hours, Sulphur II 3 hours and Oxygen III 2 hours.
This object is rich in hydrogen, but there is significant amounts of sulphur as well, there isn't much oxygen, I had trouble teasing the OIII data to get a useable amount of blue into the picture.
The relative amount of H:S has been tweaked a bit to give a pleasing result, or the image would be dominated by the Ha data and be bright green.
Whilst I was playing with the data trying to produce a "super luminance", which I never did get right, I got some interesting results from CCDStack. Here's one that I quite liked, it's more like the highlights of the nebula. Also a starless (almost, there's quite a few artefacts still in the image) version.
That's really sharp and nice Stuart, I prefer the first version.
Maybe its me, but I think I looks better rotated 180.
the areas at 4 O'Clock look like waterfalls.
What scope was this?
Whilst I was playing with the data trying to produce a "super luminance", which I never did get right, I got some interesting results from CCDStack. Here's one that I quite liked, it's more like the highlights of the nebula. Also a starless (almost, there's quite a few artefacts still in the image) version.
Cheers
Stuart
Ahhhhh, Starless! Lovely celestial art! Adding a few bright stars back in would be a classy touch.
Ahhhhh, Starless! Lovely celestial art! Adding a few bright stars back in would be a classy touch.
Hey, I'm all class, just ask Mike Sidonio!
Funny you should mention that though, at the ed of the imaging run was a 30 second LRGB set of images. Sunrise meant that I didn't get any subs, though next clear night I'll shoot them and plonk them over the starless image, hey presto, LRGB stars and narrowband nebula. Should be quite classy then!
Love the gold color Stuart, good work. Facebook I dont think will give us high resolution image, even if you uploaded one.
Regards
David
Yeah, I really should work on my website a bit more. I've now discovered that Illustrator does web pages as export, might have to have a look into that.
Quote:
Originally Posted by Bassnut
wow, extremely well done Stuart, very smick.
I though way too wide field for you Fred. But thanks anyway.
That's really sharp and nice Stuart, I prefer the first version.
Maybe its me, but I think I looks better rotated 180.
the areas at 4 O'Clock look like waterfalls.
What scope was this?
