Click image to enlarge
R=Halpha
G= OIII
B= Hbeta
Ha: 12 x 30 sec (Cust Sci 3nm Ha filter)
OIII: 10 x 30 sec (Cust Sci 3nm OIII filter)
Hb: 14 x 30 sec (Cust Sci 3nm Hb filter)
Click image to enlarge
R= Halpha
G= OIII
B= Hbeta + 60% * OIII (stretched to 16 bit)
Ha: 12 x 30 sec (Cust Sci 3nm Ha filter)
OIII: 10 x 30 sec (Cust Sci 3nm OIII filter)
Hb: 14 x 30 sec (Cust Sci 3nm Hb filter)
Click image to enlarge
R= Halpha + Hbeta (stretched to 16 bit)
G= OIII
B= OIII
Ha: 12 x 30 sec (Cust Sci 3nm Ha filter)
OIII: 10 x 30 sec (Cust Sci 3nm OIII filter)
Hb: 14 x 30 sec (Cust Sci 3nm Hb filter)
Click image to enlarge
Ha only
Ha: 12 x 30 sec (Cust Sci 3nm Ha filter)
Click image to enlarge
OIII only
OIII: 10 x 30 sec (Cust Sci 3nm OIII filter)
Click image to enlarge
Hbeta only
Hb: 14 x 30 sec (Cust Sci 3nm Hb filter)
Images taken on October 5, 2002 at Coyote Lake County Park, Gilroy, California
Imaging Scope: C14 @ f/11 (F=3910mm)
Imaging Camera: FLI IMG1024S @-25C
Tracking Scope: TV101 with Televue 2X Big Barlow (F=1080mm)
Tracking Camera: SBIG ST7E @-10C
AP1200GTO Mount
FLI CFW1 filter wheel with Custom Scientific Narrowband (3nm) Hydrogen Alpha, Oxygen III and Hydrogen Beta filters
Optec TCF-S focuser
Maxim DL 3.0.7 used for image capture and image calibration, FocusMax used for focusing, Sigma beta 10 used for darks, flats, image stacking, Photoshop 7.0 used for color combine/touchups.