View Full Version here: : M42 season
The_bluester
16-11-2020, 08:08 AM
M42 was one of the first targets I had a go at when I borrowed Andy01's Stellarvue SV70T, so I thought now I have my own SVX80T and a new camera, time to try again.
This is an initial image, 100 X 10 sec exposures to preserve the core and 10 X 600 second exposures to bring out the dusty stuff. Cloud rolled through and put a stop to getting the rest of the 600 sec subs I wanted. I will have to go again and then consider if I start building a mosaic of the greater area. The aim would be on epanel per night if I do that so 20 or 30 X 600 secs might have to do on top of the 10 second ones I would need to take to make a proper mosaic of both sub lengths.
Integrated in Astro Pixel Processor and post on Photoshop, using a layer mask to bring the core through from the ten second subs.
Astrobin (Almost) full res here, 50MB is not enough to upload full res in an uncompressed format. https://www.astrobin.com/full/crfqhg/0/?nc=user
xa-coupe
16-11-2020, 09:33 AM
Nice work. I think nearly everyone that started Astro started on M42 and has a soft spot for it.
multiweb
16-11-2020, 09:37 AM
That's a superb shot. Very deep and sharp. Well processed too. :thumbsup::thumbsup::thumbsup:
The_bluester
16-11-2020, 09:46 AM
I am pretty amazed at the smooth noise profile with only ten 600 second subs. The ten second subs I didn't even use darks for in this as I have not shot any at ten seconds yet.
gregbradley
16-11-2020, 11:24 AM
Very nice Paul. A great result.
Greg.
The_bluester
16-11-2020, 08:39 PM
Pretty happy with it as a starting point, now I am aiming to get another 25 X 600 second subs. I am also going to throw a few 900 seconds at it and see what they look like.
Ryderscope
16-11-2020, 08:57 PM
That is a very good wider field view of M42 Paul showing a lot of surrounding nebulosity with good detail. Nice work :thumbsup:
The_bluester
17-11-2020, 10:22 AM
A new revision with extra 600 second subs, 37 now rather than 10 of them. Blended through more layers and different stretch levels to reveal the core, though I am always on the fence about that, tossing up between "true" representation of the dynamic range versus blending data to reveal things not seen otherwise.
https://www.astrobin.com/full/crfqhg/B/?nc=user
strongmanmike
17-11-2020, 10:48 AM
So, was this taken while sipping whisky with Andy..? :)
It's a well images area... but not hard to see why :thumbsup:
Mike
The_bluester
17-11-2020, 10:57 AM
Partly so yes, this was happily imaging away while we got Andy's automation happening and whiskey was being drunk.
strongmanmike
17-11-2020, 11:05 AM
These are the best moments in our hobby I recon :cheers:
For one of the nights I was doing my latest image of 1316, a mate came out to my observatory and we did several hours of observing together while I was imaging...plus the beer and whisky :D it was great :thumbsup:
Mike
The_bluester
17-11-2020, 12:55 PM
Yeah, we worked out on Sunday that between life and COVID, he had not been out since January!
We even got a couple of moments to just lean back and admire the sky.
Placidus
17-11-2020, 06:29 PM
The revised version is a HUGE improvement in the fainter nebulosity and the background. Well done. The bright part seems to be very blue.
The_bluester
17-11-2020, 06:40 PM
Thanks. The big difference was a lot more 600 second subs, but I also redid the flats which improved the ten second subs no end.
I actually dialled the saturation back three times, and still nearly went again.
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