NASA's Astronomy Picture of the Day for October 12, 2026 features an image of Jupiter and its moons taken as a series of exposures near alignment from Westchester, New York. According to the accompanying explanation, the picture shows five moons: four orbiting Jupiter and Earth's Moon, which had moved directly in front of Jupiter the previous week.
In the image, the sunlit crescent of Earth's Moon appears at the lower left and is overexposed, while its night side at the upper right is faintly lit by Earthshine. Above the Moon, listed from bottom to top, are Jupiter's bright Galilean satellites: Ganymede, Io, Callisto and Europa. The explanation notes that Callisto, Ganymede and Io are larger than Earth's Moon, while Europa is only slightly smaller.
The image is credited to Chirag Upreti, with authors and editors Robert Nemiroff, Jerry Bonnell, Cecilia Chirenti and Keighley Rockcliffe. The text also states that NASA's robotic spacecraft Juno is currently orbiting Jupiter and has made close passes near three of these moons.



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