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Special Projects
- The
Covid-19 Planet season 2020
Actually, it was
planned that one of us (Paech) should take planetary images from mid-February
2020 until the end of the Mars opposition on Onjala. Covid 19 put a "spoke in
the wheel" of this plan. On March 25, Paech left Namibia and could not return
until mid-October. Accordingly, the image results of Planet 2020 are " poor ".
back to start special projects back to
Solar System/Jupiter + Saturn |
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All planetary images 2020 on this website were taken
with the Celestron 14 telescope of the Onjala Observatory in primary focus ( f
= 3900mm). Acquisition camera was a ZWO ASI 224 C.
Generally 250 images
of each 3000 raw images were stacked with Registax, wavelet image sharpening
was done with AviStack, final processing was done with Photoshop
CS2.
The raw avis were taken in October and November - Namibian summer.
The seeing conditions were mostly bad, because of the high solar radiation
(daytime temperatures up to 38 degrees Celsius) the ground was extremely heated
up and cooled down only slowly. In addition, due to the onset of the rainy
season, only a few evenings were cloudless.
« Saturn at 3.
November um 18:05 UT - shortley after sunset |
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Mars
at 02.11.2020 - 17:36 UT |
Saturn at 03.11.2020 - 18:05 UT with Florring and 2 stars |
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Image series
of a transit beginning of Ganymede on November 1, 2020. The first 10 raw sum
images were taken about 2 minutes apart. The first rawavi was taken at 17: 48
UT, the last one at 18:36 UT. |
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Image series
of a transit end from Ganymede shadow on November 3, 2020. The raw sum images
were taken about 2 minutes apart. The first image was taken at 17: 18 UT, the
last one at 18:19 UT. The raw sum images were taken before sunset, therefore
the different colors to the upper image series. |
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Jupiter and Io, 19. Oktober 2020 at 18:37
UT |
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Jupiter and Io am 10.11.2020 - 17:31 UT |
Jupiter and Io am 17.11.2020 - 17:32
UT |
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All Images and all Content are © by Wolfgang
Paech + Franz Hofmann |