Barnard 67a + B75 + B261 + B262

Posted by dcrowson
on Sunday, October 11, 2015

Ophiucus is full of Barnard’s dark nebulae. This image shows a view of four of them:

B67a – top right
B75 – top center
B262 – center
B261 – bottom center

Three of these are part of the Astronomical League’s Dark Nebulae Program.

Luminance – 12x600s – 120 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2

240 minutes total exposure – 4 hours


Imaged August 11th, 12th and 14th, 2015 at the Danville Conservation Area (New Florence, Missouri) with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.

I also used a Canon T1i and 70mm lens to image the same field one of the nights. The 17.7 x 11.8 degree image shows 59 Barnard Dark Nebulae.

Canon Image -

Canon Annotated Image -

To leave a comment you must be a member of our community.
Login to your account now, or register for an account to start participating.
No one has commented yet.
Join our Community!

Our community is FREE to join. To participate you must either login or register for an account.


Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. View our Privacy Policy.

Find us on Facebook