Jupiter showing the evolution of the new outbreak on the North Temperate Belt that was first reported on August 18th.. The first image on the top left was taken on the same night and almost at the same time of the discovery image by Isao Miyazaki. The outbreak is the bright spot visible on the top left of this first image, and, as reported by BAA Jupiter Section, “is the start of a new outbreak of storms in the rapid jet-stream on the south edge of the North Temperate Belt (a NTBs jet outbreak). These are among the most energetic and fast-moving events that occur on Jupiter. Previous outbreaks in this series occurred in 2007, 2012, and 2016, though only the first was observed thoroughly, as the 2012 and 2016 events took place largely during solar conjunction.” The initial bright plume moved and expanded along the NTB the following days as I tried to document the event with the remaining images on the panel. The last image also show Jupiter’s moon IO eclipsing the planet at the moment of the imaging. C14 + Siebert 1.5x (@ f/16) - Drizzle 1.5x - ZWO ASI290MM - iOptron CEM120 - Singapore
Jupiter and it's moon IO (casting its shadow on the planet globe) as seen the night of August 2020. The NEB outbreak visible in the upper right expanded consistently in few days, spreading over a much larger part of the planet. Average/Good seeing conditions, average transparency. 4 frames of 60" each per RGB channel derotated for the planet, centered on 15:02UT. C14 + Siebert 1.5x (@ f/16) - Drizzle 1.5x - ZWO ASI290MM - iOptron CEM120 - Singapore
The evening of August 22 started with quite poor seeing conditions but after few hours (with the planet setting) the seeing improved to become fairly good, with Jupiter still around 50 degrees above the horizon. After taking several RGB sequences of the planet I noticed that Ganymede and Io were quite close to each other and not far away, so I decided to shoot the two moons as well and mount them in the same image of Jupiter. To maintain a reasonable size image I placed the two moons a bit closer to the planet than they really were of the time of imaging, other than that the rest is exactly as it look at the respective time of imaging reported below. I find that having Io and Ganymede in the same panel with Jupiter the image a little more depth than usual and a sense of cosmic scale... As a further bonus, the NEB outbreak discovered few days earlier and still at its beginning is visible in the upper left, a reminder that Jupiter is constantly changing.. Average/Good seeing conditions, average transparency. 6 frames of 60" each per RGB channel derotated for the planet, centered on 15:35UT plus 2 frames of 60" each RGB for the moons centered on 16: 56UT. C14 + Siebert 1.5x (@ f/16) - Drizzle 1.5x - ZWO ASI290MM - iOptron CEM120 - Singapore
