Occult occultations, computed
Location

Jupiter's moons in June 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 · June 2028

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

28 events you can see from New Delhi this month, on 19 nights

Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
223241516173
8
9
101112121131142151
16
17
181192202211
22
231
24
25
262271
28
29
30
behind the planetin its shadowcrossing its faceshadow on the planet

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 Fri 2 Jun

  1. Ganymede behind Jupiter
    21:50 disappears → 01:04 reappears · 3 h 14 min
    Jupiter 42° up · dark sky
  2. Io behind Jupiter
    23:30 disappears → reappears unseen · 2 h 16 min
    Jupiter 21° up · dark sky

Night of Sat 3 Jun

  1. Io crosses Jupiter
    20:39 enters → 22:54 leaves · 2 h 15 min
    Jupiter 55° up · dark sky
  2. Io's shadow crosses Jupiter
    21:55 enters → 00:07 leaves · 2 h 13 min
    Jupiter 40° up · dark sky

Night of Sun 4 Jun

  1. Io in Jupiter's shadow
    disappears unseen → 21:30 reappears · 2 h 14 min
    Jupiter 45° up · dark sky

Night of Mon 5 Jun

  1. Europa behind Jupiter
    21:41 disappears → reappears unseen · 2 h 43 min
    Jupiter 42° up · dark sky

Night of Tue 6 Jun

  1. Ganymede's shadow crosses Jupiter
    16:58 enters → 19:52 leaves · 2 h 54 min
    Jupiter 57° up · daylight

Night of Wed 7 Jun

  1. Europa's shadow crosses Jupiter
    19:20 enters → 21:57 leaves · 2 h 37 min
    Jupiter 65° up · twilight
  2. Callisto in Jupiter's shadow
    21:53 disappears → 22:57 reappears · 1 h 04 min
    Jupiter 37° up · dark sky
  3. Europa's shadow crosses Jupiter
    22:01 enters → 22:03 leaves · 2 min
    Jupiter 36° up · dark sky

Night of Sat 10 Jun

  1. Io crosses Jupiter
    22:33 enters → 00:49 leaves · 2 h 15 min
    Jupiter 26° up · dark sky

Night of Sun 11 Jun

  1. Io behind Jupiter
    19:53 disappears → reappears unseen · 2 h 16 min
    Jupiter 58° up · dusk
  2. Io in Jupiter's shadow
    disappears unseen → 23:25 reappears · 2 h 14 min
    Jupiter 14° up · dark sky

Night of Mon 12 Jun

  1. Io's shadow crosses Jupiter
    18:18 enters → 20:29 leaves · 2 h 11 min
    Jupiter 67° up · daylight

Night of Tue 13 Jun

  1. Ganymede's shadow crosses Jupiter
    20:57 enters → 23:48 leaves · 2 h 50 min
    Jupiter 44° up · dark sky

Night of Wed 14 Jun

  1. Europa crosses Jupiter
    19:22 enters → 22:06 leaves · 2 h 44 min
    Jupiter 61° up · twilight
  2. Europa's shadow crosses Jupiter
    21:57 enters → 00:33 leaves · 2 h 37 min
    Jupiter 31° up · dark sky

Night of Thu 15 Jun

  1. Callisto crosses Jupiter
    18:40 enters → 21:25 leaves · 2 h 45 min
    Jupiter 66° up · daylight

Night of Sun 18 Jun

  1. Io behind Jupiter
    21:49 disappears → reappears unseen · 2 h 16 min
    Jupiter 30° up · dark sky

Night of Mon 19 Jun

  1. Io crosses Jupiter
    18:58 enters → 21:13 leaves · 2 h 15 min
    Jupiter 62° up · daylight
  2. Io's shadow crosses Jupiter
    20:13 enters → 22:26 leaves · 2 h 13 min
    Jupiter 49° up · dusk

Night of Tue 20 Jun

  1. Ganymede crosses Jupiter
    19:46 enters → 22:59 leaves · 3 h 13 min
    Jupiter 53° up · twilight
  2. Io in Jupiter's shadow
    disappears unseen → 19:48 reappears · 2 h 14 min
    Jupiter 53° up · dusk

Night of Wed 21 Jun

  1. Europa crosses Jupiter
    22:01 enters → 00:44 leaves · 2 h 44 min
    Jupiter 25° up · dark sky

Night of Fri 23 Jun

  1. Europa in Jupiter's shadow
    disappears unseen → 21:22 reappears · 2 h 38 min
    Jupiter 32° up · dark sky

Night of Mon 26 Jun

  1. Io crosses Jupiter
    20:54 enters → 23:10 leaves · 2 h 16 min
    Jupiter 35° up · dark sky
  2. Io's shadow crosses Jupiter
    22:08 enters → 00:19 leaves · 2 h 11 min
    Jupiter 19° up · dark sky

Night of Tue 27 Jun

  1. Io in Jupiter's shadow
    disappears unseen → 21:43 reappears · 2 h 14 min
    Jupiter 24° up · dark sky

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.