Page 12 of 27 (27 items) « First ... < Previous 10 11 12 13 14 Next > ... Last »
Cocoon Nebula

Cocoon Nebula

Cocoon Nebula, IC5146, Caldwell 19, in Cygnus.  Mag 7.2, nebula 10'x10', 3,300ly, Espin 1899 (O'Meara) 


Orion ED80, WO .8x reducer / flattener, imaged at f6 (3.6 arcseconds per pixel image scale.) with a DSI Pro II, Outback cooler (CCD Temp 12.5deg C) 13nm Ha filter. 12 x 8min exposures.


Captured with autodark with Envisage, registered and sigma combined in Astroart, post process in Photoshop, Astronomy Tools, NeatImage, GradientXT.


Note:  I was trying for an Ha sG OIII with this objects, as APOD/NASA indicates this is an emission (as well as reflective and absorption) nebula. However, several nights of attempting to image through a 13nm OIII filter proved that no or little data was passing the filter.  Interesting.


I will add RGB to this image when the moon is hiding once again.


Actions
Original Photo
Order Prints
Send to a Friend

Statistics
Posted By: SteveL
Viewed: 544
Comments: 0
Rating: 0 vote(s)
Average Rating: 0


 
Photo Comments