wide field | Peter W. O’Brien

Peter W. O'Brien
Location of photo
Derry NH
Date/Time of photo
10/30/07 02:48U
DSI Pro II behind a 6" f1.8 homebuilt astrograph
After taking many images of 15 sec or less over the course of the evening I realized that because of the reasonably large field of view I need not be too concerned about the relative motion between the object and the background stars. This image consists of H-alpha, green and blue data all with 1 min integration times taken in quick succession. The nucleus was taken at 1 sec and layered in with Photoshop.
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.