The Propeller Nebula (DWB 111) in Cygnus

on Tuesday, May 10, 2011

by John Ebersole

Taken through LB-0003: 14.5-inch (0.37-meter) RC Optical Systems Ritchey-Chretien reflector with ion-milled optics at f/9.0 on a Software Bisque Paramount ME German Equatorial mount, Apogee Alta U16M CCD camera, Hydrogen-alpha/Sulfur-II/Oxygen-III image with exposures of 90, 60, and 60 minutes, respectively

Comments
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.

ADVERTISEMENT
FREE EMAIL NEWSLETTER

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

ADVERTISEMENT
ADVERTISEMENT
Find us on Facebook