PDA

View Full Version here: : Barnard 86 and Beyond


SkyViking
31-05-2012, 10:00 PM
Hi All,

Here is another image from my chunk of recently collected data. This time of Barnard 86, my favourite dark nebula.

Hi-res image (1.4 MB) is here: http://www.pbase.com/rolfolsen/image/143683787/original

Barnard 86 is a dense molecular cloud visible as a prominent dark patch in the direction toward the galactic centre. Next to it lies the brilliant young cluster NGC 6520. It most likely condensed out of this cloud only a few million years ago. Also visible is the heavily obscured globular cluster Djorg 2 near the left edge of the image.
The background is a rich blanket of tens of thousands of stars in the Milky Way's central bulge. Among them a couple of deep red carbon stars stand out, for example one half way between Barnard 86 and Djorg 2.
Barnard 86 spans about 20 light years and lies 5500 light years away in the constellation Sagittarius.

Image details:
Date: 23-24 May 2012
Exposure: LRGB 69:28:24:24, total 2hrs 25mins
Telescope: 10" Serrurier Truss Newtonian
Camera: QSI 683wsg with Lodestar guider
Filters: Astrodon LRGB E-Series Gen 2
Taken from my observatory in Auckland, New Zealand

Oh, and I thought I'd throw in the old ToUCam version for comparison, just for fun - feel free to have a laugh :lol::P

Hope you enjoy, comments and critique is welcome as always.

Regards,
Rolf

omegacrux
01-06-2012, 07:55 AM
Nice pic way big difference in detail
A lot of people cut there teeth on those toucams
Still do I think

Dave

multiweb
01-06-2012, 08:13 AM
Very cool close-up Rolf of an interesting object. :thumbsup: I have a widefield (https://public.bay.livefilestore.com/y1pi4GE9Au_hoCOt7bwqmb3k1rEKf4SFKGV c7VqcLkVJPRfKbQcnafiItwdd6GaZuQaHKu x47v6MB7E_vEdueNoLA/scorpius_rgb_vr_ff.jpg?psid=1)here that shows it in a much larger context. Where's wally? :P

bmitchell82
01-06-2012, 01:34 PM
Nice dark neb :) 10" is where you start kicking off with these dark beauties :) well done

Paul Haese
01-06-2012, 03:31 PM
Aside from some minor flex or guiding related issue with stars I like this image. Star colour is great and the subjects really stand out. Very smooth.

stevous67
03-06-2012, 05:38 AM
Nice image Rolf. Interesting combination of objects, I see why you like it.

Steve

SkyViking
15-06-2012, 12:14 PM
Thanks Dave, yes I sure learned heaps from using the ToUCam for so many years.


Thank you Marc, and nice shot! This nebula is so dark, it really pops out even in the widefield. I noticed it's also very obvious visually, a sight to behold.


Thanks Brendan, yeah there are lots of them to choose from, I'm thinking of maybe doing the Snake soon.


Thank you Paul, guiding was within 1/2 pixel all the way but I'm still tweaking the spacing for the MPCC. I got a new spacer in the mail yesterday so maybe that'll help.


Thank you very much Steve, glad you liked it.