Jupiter and some of its moons

Last week­end, as Jupiter approached oppo­si­tion, I went out into the back­yard with my cam­era and tri­pod to see if I could get a pho­to of it.

Behold, Jupiter and the four Galilean moons. As near as I can work it (thanks to this handy cal­cu­la­tor), we’ve got (bot­tom-left to top-right) Io, Europa, Ganymede, and (way off to the side) Cal­lis­to. The pho­to was tak­en June 7, 2019, just before 11:15PM Cen­tral Day­light Time, if you want to check my calculations.

Pho­to info: 1 sec­ond expo­sure, 250mm, ISO 1600, f/5.6. Pho­to tak­en in RAW for­mat, processed with Dark­table. Cropped from a larg­er image to show the detail.