riklaunim
02-08-2010, 07:29 PM
NGC7009, Saturn Nebula - something to watch when Saturn is missing on the sky ;)
Here are RGG images where R and G channels were taken with UHC-S filter stacked with both of them. Red is 100 x 10 sec and green in 100 x 5 sec at f/10 with SCT 8" and DSI III Pro. O-III/Green is over-exposed a bit, but it's very hard not to do that with DS cams on such objects:
http://i25.tinypic.com/2vuex3a.jpg
http://i26.tinypic.com/54dv7a.jpg
http://i30.tinypic.com/2uxzcc1.jpg
Here are RGG images where R and G channels were taken with UHC-S filter stacked with both of them. Red is 100 x 10 sec and green in 100 x 5 sec at f/10 with SCT 8" and DSI III Pro. O-III/Green is over-exposed a bit, but it's very hard not to do that with DS cams on such objects:
http://i25.tinypic.com/2vuex3a.jpg
http://i26.tinypic.com/54dv7a.jpg
http://i30.tinypic.com/2uxzcc1.jpg