High resolution imaging of mutual events of the Jovian satellites during the 2014/2015 apparition
Abstract
During the 2014/2015 Jupiter apparition several mutual occultations and eclipses of the Galilean satellites took place. These mutual events occur every 5.93 years. A number of the events were recorded using 14-inch [355mm] or larger telescopes and different types of cameras. Processing programs like Registax 6.1 or Autostakkert2! struggle to grade, align and stack the tiny images of the Jovian satellites. To obtain high resolution images different processing procedures were employed to optimise the quality of the images, including hand selection and the use of master frames. Several occultations and eclipses were recorded at high resolution. In several eclipses the umbra and penumbra could be successfully distinguished. An interesting phenomenon was observed near the date of opposition, viz. the simultaneous occultation and eclipse of Ganymede by Callisto on 2015 February 7, one day after opposition.
- Publication:
-
Journal of the British Astronomical Association
- Pub Date:
- October 2016
- Bibcode:
- 2016JBAA..126..290S