Again using the MX916, the Aero lens, an Infrared Block and Hydrogen Alpha photographic filter. Exposure is the sum of Sixty four 30 second exposures.
(http://homepage.ntlworld.com/paul_whitmarsh/Astronomy/Images/MX916/August_03_2003/Gamma_Cygni_a-copy.png)
[ This Message was edited by: Whitters on 2003-08-04 01:05 ]