Astronomie Stiftung Trebur
Schatten von Ganymed am GRF
An image of Jupiter taken at the end of the current observation season. The stream shows Jupiter on 1 May 2026 between 20:36 and 21:39 CEST. Particularly striking at this time is the famous Great Red Spot (GRS), a hurricane that has existed for centuries. A black shadow can be seen next to the GRF. Here, a solar eclipse is taking place in Jupiter’s atmosphere, caused by the Jupiter moon Ganymede. Ganymede itself can be seen to the right of Jupiter. Further out, the moon Io is visible, whilst Jupiter’s moon Europa can be made out on the left-hand side.
About the imaging technique:
From 40 streams of 2000 images each, individual frames were created using the Autostakkert software with a usage rate of 20%. We then compiled these into a time-lapse sequence at 3 frames per second.
A refractor with a 200 mm aperture, whose focal length was extended to 5700 mm, was used as the imaging telescope.
Image credit: G. Piehler & H. Zitzkowski