View Full Version here: : Ngc6164
cometcatcher
28-05-2020, 05:14 PM
The death throws of stars can be a beautiful process. Emission nebula NGC 6164 was created by a rare, hot, luminous O-type star, some 40 times as massive as the Sun. 4 light years across and 4200 light years away.
GSO 10" F4 Newtonian, ZWO ASI 183mm Pro at -10C, Bi-colour, Ha 256m, OIII 421m with Svbony 7nm narrow band filters, total 11.3 hours. Could have done with 50+ hours, but I don't have the patience. :P Stretched to an inch of it's life but that's the way I am. If it isn't bleeding I haven't pushed it enough. :P
Bigger at Astrobin ---> https://astrob.in/qez3m4/B/
jwoody
28-05-2020, 05:52 PM
My kind of image Kevin, nice work :)
marc4darkskies
28-05-2020, 06:04 PM
I'm with you Kevin - stretch, stretch stretch!! As much as your data will allow anyway! This is starting to bleed though :) But, it's a very respectable and deep image! :thumbsup: Well done!
gregbradley
28-05-2020, 07:00 PM
That's really deep. I don't think I have seen one deeper of this.
Nicely done and I like the teal blend you got for the O111. That is an interesting bar feature on the left side of the teal nebula.
Greg.
cometcatcher
28-05-2020, 07:50 PM
Thanks Jeremy. :)
Thanks Marcus. I'm processing it like it has 100 hours, not 11 lol.
Thanks Greg. We've had a run of very dark, transparent skies here the last few days. I reckon I've dropped a bortle number or 2!
But the deepest I've seen it Rick Stevenson's. His image has inspired me to image the OIII halo long before I got a dedicated astro cam. I just couldn't get much of it with DSLR.
This is a link to Rick's image of 6164, my inspiration. https://astrob.in/254123/0/
Placidus
29-05-2020, 07:47 AM
Superb depth there, way beyond what we've seen before.
Good job, if a bit pushed. That is how it goes sometimes.
cometcatcher
29-05-2020, 11:23 PM
Thanks MnT. The difference a good night makes I think.
It does, plus it's my nature to push things to their limit.
ChrisV
30-05-2020, 11:30 AM
Very nice Kevin. Bend and stretch!
cometcatcher
30-05-2020, 01:21 PM
Thanks Chris!
strongmanmike
31-05-2020, 08:24 AM
Man, a lot of OIII there Kevin huh? :eyepop:
Mike
gregbradley
31-05-2020, 08:44 AM
Yeh but, no but, yeah but, no but - his is 74 hours! Arrhhh. That's a few months worth of imaging time considering clouds, work and moon!
I think also what it shows is the superior QE of these cameras to their still wonderful CCD cousins, especially in narrowband.
The CCD I have used that is closest in performance is the Sony 694 CCD.
Greg.
Andy01
31-05-2020, 09:47 AM
Hey Kevin, nice work! :thumbsup:
The stars have blown out though - maybe to retain some integrity in them, if you were to remove the stars first from the Ha & O3 master stacks with Starnet++, and then stretch the heck out of them, and layer in seperate RG&B stars it could look even better!
Just my 2c worth - still a great image! :D
cometcatcher
31-05-2020, 10:31 AM
It certainly is!A lot of time dedicated to that image. 74 hours is a couple of years work for me. We just don't get that sort of sky time in the tropics.
RGB stars would be the next step for sure Andy. I have a previous RGB image taken last year. When I get some time, I might have a muck about and see if I can integrate them.
Slawomir
31-05-2020, 07:38 PM
I really like it - well done Kevin :thumbsup:
Now, if you only added a bit more data...:scared3: just kidding. A great image and I look forward to seeing your next astro image.
cometcatcher
01-06-2020, 10:21 AM
Definitely could use more data. But I get a bit impatient once I reach 10 hours. SO much sky, so little time....
graham.hobart
01-06-2020, 05:43 PM
Amazing -love it, where is it in the sky ?
Ryderscope
02-06-2020, 08:42 AM
I’ve enjoyed all the bleeding metaphors Kevin :D You’ve landed a great image with colours that work quite well. Almost looks like an explosion in space with the gas cloud heading towards you :)
cometcatcher
02-06-2020, 10:19 AM
Hi Graham, very close to the fighting dragons NGC6188, near Scorpius.
Thanks Rodney. It does look a bit like an explosion in space heading towards me, oh wait... :)
strongmanmike
02-06-2020, 07:02 PM
Yeah I'm witch'ya mate...it's usually nights I measure it in, hard for me to go past two nights, three is pushing it...I tend to get bored :whistle: :drink:
52.5hrs over 10 nights is my best so far..nearly killed me :scared::scared:
Mike
cometcatcher
03-06-2020, 08:48 AM
2 - 3 nights is about my limit too before boredom sets in. I might get away with more if I had multiple bogeys to shoot in one night.
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