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| Solar Prominence on east limb 3/3/2001 at 16:44 UT. Image taken with a 5.1" Astro-Physics Refractor using a DayStar H-alpha filter with 63mm ERF, TeleVue 2.5X Powermate and AVA Astrovid 2000 video camera. Processed in Adobe Photoshop. |
| These two images (above & below) of AR 9046 captured June 25, 2000 were taken about an hour apart. Note the active filament to the NW of the primary sunspot. This filament was still visible after the filter had cooled down and no other H-alpha detail was visible indicating it was heading towards us (blue shifted). The filter is about 2.5 Angstroms to the blue side of the H-alpha centerline when it is cooled down. |
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| Active Region 8614 taken on July 10, 1999 at
14:36 UT with my 5.1 f/8 AP refractor, Daystar H-alpha filter and 4X Powrmate.
The unprocessed image above has been cropped, resized and saved as a JPEG,
but no unsharp masking, histogram adjustment, etc.
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An UNSHARP MASK was made and applied 3.0
radius for the blur, and -63 for contrast, -45 for brightness. I adjusted
the histogram of the original image before the mask was applied and after.
Finally I did a sharpen and then saved the TIFF as a JPEG.
"The improvement I note over the regular unsharp mask & sharpening is additional detail in the highlight (bright) areas of the image." |
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| Crater Clavius captured 26 March 1999 with a 6.1" f/9 Star ED refractor, 5x Televue Barlow and an Astrovid 2000 video camera. Single frame capture from S-VHS using a MRT Videoport Professional frame grabber. |
