1. High resolution imaging of mutual events
of the Galilean moons 2014/2015
John Sussenbach en Willem Kivits

2. 1. Potentials of amateur high resolution imaging
Willem Kivits: 20 inch Newtonian John Sussenbach: C14

3. High resolution imaging today”
WK JS
Imaging with the C14 and ASI224MC camera

4. Comparing the big Jovian moons with the Earth-Moon system
1.15” ” ” ”
Io Europa Ganymede Callisto

5. Triple shadow transit 12 October 2013
Ganymede Io Europa

6. Procedures 1.Capturing the avi’s
-Telescopes: C14 f/25 - f/40 (JS and WK)
Newtonian inch (WK)
- Camera’s: QHY5LII (CMOS)
DMK618 (Sony ICX618 chip)
- Filters: , 685 and 807 LP nm
- Capturing: frames (60 sec at 100 fps)

7. 2. Processing of the avi’s
- centering with PIPP
( sites.google.com/site/astropipp )
- preprocessing with Photoshop
- (hand selection)
- final processing with Autostakkert or Registax

8. High resolution imaging of Ganymedes

9. 2. Mutual events of the Jovian moons
a. Occultations

10. Close conjunction of
Ganymede and Europa
1 January 2015 UT
Minimal separation 0.03”

11. Occultation of
Io by Callisto
7 January 2015

13. Occultation of Ganymede by Io 12 February 2015

14. 2. Mutual events of the Jovian moons
b. Eclipses

15. Umbra and Penumbra

16. Selection procedure
Eclipse of Callisto by Ganymede 25 November 2014

17. Stacking 100 best frames (hand selection)
25 November 2014

18. Masterframes

19. Stacking best frames with 35% master frame
25 November 2014

20. Ganymede eclpses Callisto 25 November 2014 (C14)
03.06 UT – UT

21. Eclipse of Callisto by Ganymede
25 November 2014
Willem Kivits

22. 3. Special effects around opposition
(6 February h UT)

23. Scattered light on Ganymede

24. Europa occults and eclipses Io 7 February 2015
Opposition
6 February h UT

26. 4. Different types of eclipses

27. Europa occults and eclipses Io 7 February 2015
AS2! stack
100 best handpicked
100 best + 35% master

28. 4. Different types of eclipses

29. 4. Different types of eclipses
Winjupos
4. Different types of eclipses

30. Europa eclipses Io 22 February 2015

31. Io eclipses Europa 22 February 2015

32. Io eclipses Europa 22 February 2015
Measured with Aperture Photometry Tool

33. Ganymede eclipses Callisto 2 February 2015 (1)WK

34. Ganymede eclipses Callisto 2 February 2015(2)
Distance 2.9 million km apart

35. Europa eclipses Io 11-3-2015 WK
Io eclipses Ganymede WK

36. Io eclipses Ganymede 13 March 2015

37. Io eclipses Ganymede 13 March 2015 WKUT

38. Io eclipses Ganymede 13 March 2015 WK

39. Next opportunity in 2021! Io eclipses Europa
23 May UT
Unfortunately Jupiter is then in Sagitarius:
In Holland only 20 degrees above the horizon!