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Delayed process of Kielder star party 2012 DSOs Part1

robbieince

By robbieince
in Imaging - Deep Sky

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robbieince

robbieince

Posted
Posted

Hi Everyone

Well, this event seems ages ago now, but I have only just completed my process on the images I took at Kielder in March.

It was a truly superb event, the weather even played ball - I even came away with a suntan and lots of data to process. The Sky at night crew should have come in the Spring instead of the Autumn when they were rained out.

I was booked for my usual Wednesday (21/3) to Monday (26/3), but as the weather was so good, I actually stayed on a couple of more days and managed to get a total of 6 nights imaging in with four full all nighters.....

The only night I didn't image as it was misty and partly cloudy, was the 23rd which happened to be my birthday so i was "celebrating" instead.

So, attached are some images - hope you like them. They are all taken with my Orion Optics AG8 astrograph, working at F3.8, mounted on an EQ6 Pro, Auto-guided using PHD via a SX off axis guider and my Atik 16IC guide camera. The main imaging camera is a monochrome Artemis 4021, shooting through Astronomic 2 inch filters in my SX 2 inch filter wheel.

Seeing overall wasn't great, with some high thin cloud often making transparency poor but the Kielder sky when poor is better than most other skies at their best.......

Lots of room for improvement - especially in collimation (a pig with the AG8 - fast F3.8 shows poor collimation as apparently poor focus or astigmatism) but still fairly satisfied. Click through to see highest resolution versins 9wide field is just over a degree field of view at 1.97 arc seconds per pixel.

Horsehead and Flame - HaRGB - 1 hour of Luminance taken in Hydrogen alpha and (6x10 minute exposures, with RGB binned 2x2, 3x10min each.

M42 - in Hubble Pallette - S2,Ha,O2 - 20 mins each channel, (4x5mins - really needed longer subs in narrowband)

M51 - LRGB - 80mins in L (8x10mins), RGB at 3x10mins each, binned 2x2

M51 LRGB crop - slighly different colour balance - what do you think?

M51 Luminance - as above - but shown in negative and stretched to show faint fuzzies - annotated with some named examples of galaxies visible and their magnitudes. - Astrometry in astoArt5 says i can see down to magnitude 20......

M81-M82 - RGB - only 3x10mins each channel so noisy

M81 crop to galaxy only

M82 crop to galaxy only

More to follow.......

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SteveA

SteveA

Posted
Posted

Rob,

What an absolutely beautifull set of images...they are stunning.

You must be fairly chuffed with that lot.....

Its amazing what happens in the UK when we get a decent bit of weather, the ability to get out and get several nights imaging on the trot really makes a difference...

Steve

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peter shah

peter shah

Posted
Posted

Superb stuff rob, looks like you got a lot from the star party' I can even see some integrated flux showing through around m81. Kielder is one I would love to get to, and now my son is getting older I'll probably get to sooner. the scope is a real pig to collimate, as you know. but also you will have probably found this type of wynne style corrector will give you an astigmatic effect as it goes inside and outside focus toward the field edge, if its showing in the centre, then its more likely to be collimation.

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