Camera | : | Starlight Xpress SXV-H9 CCD camera |
Lens | : | Minolta 2.8/135 mm (Ha: f/2.8, O-III: f/3.5),
mounted with a home-made adapter |
Filter | : | Astronomik Ha and OIII filter |
Mount | : | Vixen Super Polaris DX |
Guiding | : | SBIG ST-4 autoguider |
Dates | : | 21 Mar. 2004 (Ha), 04 Mar. 2006 (O-III) |
Exposure | : | Ha: 2x15 min; OIII: 3x10 min per frame |
Site | : | Ha: Cederberg Observatory, O-III: Koornlandskloof Guest Farm |
Processing | : | Bias, dark frame, flat field correction, registration and digital development: IRAF;
mosaic assembly: SExtractor, Match, custom software and Swarp;
post-processing: Gimp |