View Full Version here: : Ngc300
Shiraz
30-11-2016, 10:12 PM
Hi
had some quite nice seeing for this - only lasted for a few hours, but enough to get some good data :). I was particularly pleased to see the background galaxies all over the place (even through the main galaxy) and the framing is off centre to get a good collection. It is not particularly deep, but the resolution was good.
http://www.astrobin.com/full/274121/0/?real=&mod= (3Mb)
Thanks for looking. regards Ray
L 239x60sec, R 42x90sec, G 35x90sec, B 30x120sec
ASI1600 @ gain 100
SimmoW
30-11-2016, 10:32 PM
Lovely Ray. Where did you take this from, a dark site?
Atmos
30-11-2016, 10:49 PM
That is really lovely Ray, so many tiny dots (good seeing) and galaxies :)
batema
30-11-2016, 11:36 PM
Just beautiful. Wonderful image.
Mark.
willik
30-11-2016, 11:44 PM
very good detail hard to get with the 300 very nice
Adriano
01-12-2016, 01:18 AM
Beautiful NGC 300. Great work.
Geoff45
01-12-2016, 06:26 AM
Amazingly detailed Ray. Seeing must have been pretty good. What was the FWHM?
alpal
01-12-2016, 06:31 AM
Hi Ray,
you image is excellent compared to mine.
You had nearly 7 hours of data but I only had 3 hours from a light polluted location.
see here:
https://www.flickr.com/photos/24719437@N03/22116587358/in/photostream
Still I was using fast download from my QHY9 mono camera
( but the same sized scope. )
That adds noise equivalent to sky noise that I didn't know about before.
I'll have to try this target again if I ever get the time.
Well done with the 10" f4.
cheers
Allan
multiweb
01-12-2016, 07:21 AM
Terrific. Another one for the pool room. :thumbsup::thumbsup::thumbsup:
Shiraz
01-12-2016, 08:09 AM
thanks Simon. In Ardrossan, a small seaside country town. It is not particularly dark, but OK. seeing can be good during the transition seasons, but is messed up in Winter by the nearby sea, which is much warmer than the night air.
thanks very much Colin - it was tantalising to see so many almost resolved dots as well - maybe time to start looking at a bigger scope :P.
thanks a lot Mark!
thanks very much Willik
thanks Adriano - appreciated.
Hi Geoff. seeing was good for much of it and the stacked FWHM was just under 2 arcsec.
thanks very much Allan. our images are very similar in colour and seem to differ mainly in scale. imaging through LP sure can make life hard.
thanks very much Marc!
regards Ray
RickS
01-12-2016, 08:18 AM
That's a great result, Ray! Love the main galaxy and also the smaller fuzzies. The one at 3 o'clock is especially cool.
Cheers,
Rick.
strongmanmike
01-12-2016, 09:12 AM
A very enjoyable view of NGC 300 that Ray :thumbsup: It's one of those galaxies that sits a great field of background galaxies too which always makes for an awesome scene.
Well done
Mike
glend
01-12-2016, 09:54 AM
Great image Ray. Are you continuing to acquire data for this target? Given the nodular details your getting, I can't help but wonder what a bit of Ha would add to the mix. :thumbsup:
gregbradley
01-12-2016, 10:52 AM
Wonderful as usual Ray. A beautiful image of a very photogenic galaxy.
Its amazing you can make out knots of the brighter stars at such an unimaginable distance.
Greg.
Placidus
01-12-2016, 10:59 AM
Ray, that one caused an involuntary gasp of delight and amazement.
The stacked FWHM of under 2 sec arc goes some way to explaining the instantaneous reaction. Faultless gear and magnificent sky.
Trish and I will have fun coming back to your photo several times.
Best,
Mike
PRejto
01-12-2016, 11:01 AM
Ray,
That is such a nice sharp image with great colour! Just how much improvement in resolution do you think you are getting through this "lucky imaging?" I think with your previous Trius you were doing 300 sec, so now 5x shorter for luminance and guiding also less of a factor. I'm curious how you stacked so many luminance frames? One go, or several smaller stacks?
This makes me want to sell my Trius!
Peter
topheart
01-12-2016, 10:45 PM
Hi Ray,
A top notch NGC300!
Very well done!
I hope the data I've been collecting on this comes out half as well as this.
Cheers,
Tim
alpal
02-12-2016, 07:25 AM
Hi Ray,
Your image is just extraordinary.
It's so sharp & the colours are perfect.
You have resolved so many individual stars inside the galaxy.
Going under 2 arc seconds & plenty of integration time
with dark skies & obviously a perfectly collimated & guided scope
has given professional looking results that would compare with
a much larger scope.
cheers
Allan
Shiraz
04-12-2016, 12:14 AM
thanks Rick. yep that one looks neat - pity it is so far away
thanks for the kind words Mike.
thank you Glen. No, cloudy here, so that is probably that for this year. I liked Mike's version with the Ha, so it can add to the galaxy. Thanks for the suggestion
thanks Greg, yeh, its great that we can resolve stars at such a distance (I suppose that is what they are)
thanks M&T. the sky did it's bit this time - way better than average. Would have been a strange sight for a casual visitor - an old guy wandering around in the dark, looking at the sky and muttering "you bewdy".
Hi Peter. I think that the "mildly fortuitous" imaging drops the FWHM by a bit in average seeing. In really good seeing it still worthwhile, but less effective. By far the biggest advantage is with narrowband, where my system is typically sky noise limited at about 10 minutes - vs a couple of hours with the 694.
thanks Tim - looking forward to your image
very generous comments Allan - thank you very much.
regards Ray
DaveNZ
04-12-2016, 06:33 AM
Great detail. Love those faint galaxies.
Looks like the RCC1 is doing a good job.
Dave
Hi Ray great image plenty of small detail to run the eyes over, I noticed you are using a gain of 100. Have you concluded this is a good compromise between 75 and unity. I have been struggling to get a clear night to test my new asi 1600, maybe tonight.
Clear skies Ken.
Stevec35
05-12-2016, 06:02 PM
A NGC 300 to be absolutely proud of Ray. Wish I had taken it.
Cheers
Steve
vBulletin® v3.8.7, Copyright ©2000-2025, vBulletin Solutions, Inc.