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Image data
| Date: | 04. December 2002 |
|---|---|
| Time UT: | 09:10:58, 09:11:02, 09:11:06, 09:11:08, 09:11:12, 09:11:14, 09:11:18 and 09:11:20 (19:40:58 Australia Central Summer Time UT + 10,5h) |
| Location: | Koolimylka, Woomera Prohibited Area (WPA), Australia. |
| Altitude: | Approx. 244m above sea level. |
| Latitude: | 30°57'15"S |
| Longitude: | 136°31'32"E |
| Seeing: | 3/10 |
| Transmission: | 7/10 |
| Temperature: | 29°C |
| Wind: | Very windy |
| Camera: | Canon EOS-D60 |
| Settings: | ISO 800, ImageQuality RAW |
| Lens: | Takahashi FS-60C w/Extender-Q (568mm f/9,5) |
| Filter: | None |
| Exposure: | 1/2000, 1/1000, 1/500, 1/250, 1/125, 1/60, 1/30 and 1/15 second |
| Guiding: | None |
| Digital enhancements: | 8 images (1/2000,
1/1000, 1/500, 1/250,
1/125, 1/60, 1/30 and
1/15 second)
where combined together in order to show details in both inner and
outer corona. The resulting image was then blended with the 1/2000
second shot, slightly reducing the intensity of the inner corona and
enhancing the prominences. A slightly enlarged silhouette of the moon
was then pasted in to cover the slight blur
caused by the Lunar motion over the Solar disc during the time it took
to make the exposures. Finally the image was run through SBGNR to reduce
the amount of noise in the fainter parts.
The image was cropped and resized for presentation on the web. The coronal work where done by Mikkel Steine and I'm very grateful to him for all the help he gave me processing this image!! |
| Notes: |
The windy conditions caused severe amount of dust
near the ground and I had to raise the tripod higher than originally
planned for. This made the setup more unstable and more exposed to the
wind causing strong vibrations. Because of this I made a last minute
decission to use ISO 800, instead of the planned ISO 200, during the
totality in attempt to minimize blurring caused by vibrations. I have later identified the Manfrotto
410 head as the weak link in this setup - especially when operating at
low latitudes!
This picture was published in: Magazines:
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Created 14. January 2003