Jupiter impact, and moon transit

1rst of August and 20th of August, Observatory Gilching

     in deutsch


By using a 14.5-inch telescope the Australian Anthony Wesley discovered on July 19th this impact. Nothing similar was observed since the Comet Shoemaker-Levy 9 hit Jupiter in 1994. Meanwhile (8/8/09) this astronomical highlight  expanded up to 6 arcsec visual (Jupiter, Dvis=45'') which has a real size on the planet of 18.000 km. The debris cloud can be observed with better amateur telescopes.


South pole is up

Click for Video

Advice: For MPEG-2 videos take VLC-Player, AVS4YOU or Irfanview etc.. it works!

Ok, let's try it also. Due to the catastrophal seeing the first observation was null and avoid. Jupiter appeared at the 27th of July in the 20" Newton like an inflamed tennis ball. The most difficulties has been the deep position max. 27 over the horizont, and the disturbances caused by the hot summer atmosphere. On the first of August the seeing was quite better but not good. The results are shown on the upper photos. 580 images were aligned and staked by Registax5 each. Video with Philips ToUcam K840


In comparision: Saturn photographed on May 2007 with the same 20" Newton: Perfect seeing - perfect shape


Upper two images from the impact photographed with the hubble telescope on 8/19/2009, credit by NASA

More infos at

Jupiter moon transits

20th of August, Observatory Gilching

Here a little special about the moon transits. A double transit of Europa and Ganymede took place at 0:20 UTC / 2:20 MESZ.

The seeing was except one short pacification terrible, whereby you could only use one videoclip from twenty. From 3000 frames I selected 150 frames by hand and staked and aligned it with RegiStax5 on the Ganymede moon shadow.


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   2009 photos und text by Thorsten Boeckel, last modification 08.08.2009