Jupiter's moons in November 2028
Io · Europa · Ganymede · Callisto
Jupiter's four big moons put on a show every night: they slip behind the planet and into its shadow, cross its face, and drag their shadows across the cloud tops. Any telescope shows it. Pick your place: the calendar and the nights keep only what your sky shows.
Where the moons are
Jupiter's equator horizontal, east to the left as in binoculars. Drag through the month, or tap any event below to jump there; full screen (⤢) steps through a single night a minute at a time. Moons behind the planet fade, a moon in Jupiter's shadow is an empty ring, and a shadow on the disc is placed from the listed times. Positions ±0.1 Jupiter radii — for the picture; the times come from JPL.
Events
11 events you can see from New Delhi this month, on 8 nights
Times in IST, when the moon's centre crosses the edge — as almanacs list them. A night runs from noon to noon. Tap an event to see it in the diagram.
Night of Wed 1 Nov
- Io in Jupiter's shadow05:45 disappears → reappears unseen · 2 h 12 min
Night of Thu 2 Nov
- Io crosses Jupiter03:32 enters → 05:46 leaves · 2 h 14 min
Night of Thu 9 Nov
- Io crosses Jupiter05:33 enters → 07:46 leaves · 2 h 13 min
Night of Fri 10 Nov
- Io behind Jupiterdisappears unseen → 04:58 reappears · 2 h 12 min
- Europa crosses Jupiter05:22 enters → 07:57 leaves · 2 h 35 min
Night of Sun 19 Nov
- Europa behind Jupiterdisappears unseen → 05:41 reappears · 2 h 36 min
Night of Tue 21 Nov
- Ganymede in Jupiter's shadow02:39 disappears → 05:07 reappears · 2 h 28 min
- Ganymede behind Jupiter05:58 disappears → 08:25 reappears · 2 h 28 min
Night of Fri 24 Nov
- Io in Jupiter's shadow05:53 disappears → reappears unseen · 2 h 12 min
Night of Sat 25 Nov
- Io's shadow crosses Jupiter03:13 enters → 05:22 leaves · 2 h 10 min
- Io crosses Jupiter04:02 enters → 06:14 leaves · 2 h 13 min
Reading the list
Times are for the moment the moon's centre crosses the edge of Jupiter or of its shadow, the convention of published tables; the moon's own disc takes a few minutes to cross. A start or end marked unseen happens behind Jupiter or inside its shadow. “Only what I can see” keeps events with Jupiter more than 10° up in a dark sky. Positions are from JPL DE431 and the jup365 satellite ephemeris, Jupiter as an oblate spheroid with its shadow cone. Mutual-event brightness drops assume uniform discs and are estimates. Events are geocentric — the same instant everywhere on Earth to well under a second.