IC 1284, NGC 6589, NGC 6590, NGC 6595 in Sagittarius, repro more data.
Hi,
Making the most of limited imaging that can be done at the moment.
This image of
IC 1284, NGC 6589, NGC 6590, NGC 6595, M24 Star Cloud in Sagittarius is only an hour and 5 minutes of data in murky conditions, before the cloud moved in.
It's come up well considering.
8" F/4 astrograph HEQ pro 5 mount. Orion mini guider.
Unmodded canon 1100D, baader type III coma corrector.
24 x 5 minute subs, ISO 1600.
Stacked in DSS, processed in PS7.
Repro on right with more data.
Cheers,
Justin.
Last edited by tilbrook@rbe.ne; 26-07-2014 at 05:19 PM.
Do you have any special tricks up your sleeve when you process frames taken @ high Iso(800+) and exposure time of several minutes as far as the colours of stars are concerned?
Looks really nice Justin. I didn't even know there was nebula in that spot.
Thanks Kevin!
This one is not imaged often, easier from a dark site.
Quote:
Originally Posted by gregbradley
Very nice Justin. You caught the subtle colours of that region quite well.
Greg.
Thanks Greg!
Tried not to vegas this one.
Quote:
Originally Posted by Larryp
Very nice result, Justin
Thanks Laurie!
Still got your imaging gear?
Quote:
Originally Posted by LewisM
LUVERLY, just luverly
Thanks Lewis!
Quote:
Originally Posted by IanP
Justin, nice material and very well processed.
Do you have any special tricks up your sleeve when you process frames taken @ high Iso(800+) and exposure time of several minutes as far as the colours of stars are concerned?
Thanks Ian!
I convert my raws to tiff, for me it seems better for holding colours through the whole image.
Apart from that I use the magic wand a lot in Photo Shop for stars.
I click on a star with the wand the select similar.
This should select most stars in the field.
If the wand selects area's that you don't want, hold down the alt key and click on the area you want to deselect.
Then go to select - modify - expand and in crease from 3 to 5 pixels.
Now you can increase saturation on the stars without boosting the rest of the region.
I do this several times and also use the minimum - noise and Gaussian blur at this stage to help clean up and reduce star size.
Hope I'm not telling you how to suck eggs!
Quote:
Originally Posted by RickS
Looks great, Justin!
Thanks Rick!
Quote:
Originally Posted by Star Catcher
Nicely processed Justin, one to try in future.
Ted
Hey this is good too, mini data may not be enough on this target as it is actually quite faint and subtle but never the less a nice job considering It's a very tenuous looking region even in deep exposures.
Hey this is good too, mini data may not be enough on this target as it is actually quite faint and subtle but never the less a nice job considering It's a very tenuous looking region even in deep exposures.
Mike
Thanks Mike!
Yep, like to have more data, the sky was hazy so I'll redo from scratch.
Quote:
Originally Posted by David Fitz-Henr
Another nice effort Justin, quite good considering the meagre amount of "mini-data" with a DSLR and a difficult target
Thanks David!
I suppose one thing about mini data is that it takes quite a bit of processing to make a reasonable image, so it should be doddle with lot's of data.
Quote:
Originally Posted by astronobob
Grouse one Justin Dig the dustyness for an hours worth - nice going
Thanks Bob!
I was surprised at the amount of dust that came through with murky skies.
Top image there Justin, and nice choice of target too. It's a rarely imaged nebula with some beautiful colour contrasts and the background dust and dark lanes have come up well.
Top image there Justin, and nice choice of target too. It's a rarely imaged nebula with some beautiful colour contrasts and the background dust and dark lanes have come up well.
Thanks Rolf!
Must admit to checking yours out, beautiful!
Certainly helped.
Quote:
Originally Posted by DJT
Nicely done..a neb, a cluster, a dark neb and rather a lot of stars, its got it all really. a very nice fov.
This I reckon is one of the more interesting objects to image in the Milkyway. I love the blue reflection and the dark dust lanes that this object presents. A tough object and I look forward to your next rendition.
This I reckon is one of the more interesting objects to image in the Milkyway. I love the blue reflection and the dark dust lanes that this object presents. A tough object and I look forward to your next rendition.
Thanks Paul!
Just posted a repro with 2 hours of data.
I was able to push it a little more, more vibrant now.
Tonight looks promising, the best in a long while so hope to get more data.
Cheers,
Justin.
Last edited by tilbrook@rbe.ne; 26-07-2014 at 05:33 PM.
Dig the dustyness for an hours worth - nice going 
