Here is another galaxy image I took over the Christmas/New year Period.
5:30 hours, Tak BRC250, FLI Microline 8300 camera, Astronomik filters, Tak NJP mount.
A photogenic galaxy that is relatively bright.
This one also took a long time to process. I had some green gradients despite being taken at my dark site. I think a bit of light from my monitor must have gotten in.
Pops out of the screen Greg, nice contrast with the jet black background. Again, nice change and top work (sheesh your a busy imager ;-)
Thanks Fred.
The period between Boxing Day and Jan 5 was almost completely clear nights every night. Mostly with good seeing as there was a high pressure system around.
An unusual object and stunningly beautiful, very nice capture, well done Greg !!
Thanks for that Andrew. There are quite a few nice galaxies up for imaging at the moment. Perhaps summer/autumn is galaxy season in
the southern hemipshere.
Quote:
Originally Posted by marc4darkskies
Another beautiful shot there Greg! Well done!! Keep pumping them out!!
Cheers, Marcus
Thanks Marcus. I am getting a Baader flatfield corrector so I can put the U16M on the TEC and run it at F14 or F21 or beyond as well as do planetary at up to F56 (it'll do up to 8X with a 50mm corrected circle).
So 17 megapixel at F14 could be interesting for galaxy work. Not sure what it will mean with exposure time. How did you find F11 for your Horsehead and exposure time?
Thanks Marcus. I am getting a Baader flatfield corrector so I can put the U16M on the TEC and run it at F14 or F21 or beyond as well as do planetary at up to F56 (it'll do up to 8X with a 50mm corrected circle).
So 17 megapixel at F14 could be interesting for galaxy work. Not sure what it will mean with exposure time. How did you find F11 for your Horsehead and exposure time?
Greg.
Greg.
Let's just say that at F11.7 I have to be pretty patient. I imagine F14 on your 180 would be similar. Not sure the benefit of going much more than that though (?) I'm not thrilled with the TOA 1.6x extender - it works but it's only a 40mm circle and not as flat as I'd like. Look forward to seeing the results you get.
Let's just say that at F11.7 I have to be pretty patient. I imagine F14 on your 180 would be similar. Not sure the benefit of going much more than that though (?) I'm not thrilled with the TOA 1.6x extender - it works but it's only a 40mm circle and not as flat as I'd like. Look forward to seeing the results you get.
Cheers, Marcus
Yes it will be an experiment but fortunately I can use it also for planetary work so if it doesn't work out it won't be for nothing.
Roland Christen posted about the benefits of long focal length APO imaging a while ago to obtain max resolution from your scope.
This is great. I generally don't mind optical effects in images but in this case I have to say that star does destract the eye a little, not bad just annoyingly, it looks marvelous as an even tighter crop IMO
beautiful pic Greg 
