Jupiter and the moon Io and its shadow, Io's shadow is uopn the jovian disc and the moon Io is approaching the limb and transitioning across the jovian disc.
Equipment; LX200ACF 12 in. OTA, CGE mount, Flea3 Ccd, TeleVue 3x barlows, Asronomik LRGB filter sets. (left=Lum., Right=RGB channels).