Sun through Coronado H-alpha filters
Updated : 1 May 2005.
Click on image to get larger size image.
- CCD : STL11000M ABG 1x1 binning
- Exposure time : 0.003 s
- Date and Time : 01. May 2005, 09:41 UT
- Instrument : FSQ @ f/38 (SM60)
- Focal length : ca. 2300 mm (4x Powermate)
- FWHM : about 0.05 nm (double stacked H-alpha filters)
- Filters : Astronomik red filter, 90mm and 60mm H-alpha filter
- Image processing : MAxim V4.10 (image acquisition), Registax (stacking and wavelets)
- Problems/comments : Further processing in Photoshop (colorized).
Image is stack of 9 images. Imaged at my backyard, Mol, Belgium.