M51 | Peter O’Brien

Peter O'Brien
Location of photo
Derry, NH, USA
Date/Time of photo
February 2006
Meade DSI pro II and an 10"LX200 @ f3.3 & 6.3
This is a combination of a series of images captured with the DSI pro II. The overall image was taken @f3.3 using drizzle technology. Two versions of the same image were used, one to bring out faint detal in the outer arms and other to compensate for overexposure of the nucleus. Other images taken @ f6.3 were then scaled down in Photoshop and combined with the f3.3 data to give sharpness and greater detail to the nucleus and brighter out arm patches.
All comments must follow the Sky & Telescope Terms of Use and will be moderated prior to posting. Please be civil in your comments. Sky & Telescope reserves the right to use the comments we receive, in whole or in part, and to use the commenter’s username, in any medium. See also the Terms of Use and Privacy Policy.


This site uses Akismet to reduce spam. Learn how your comment data is processed.