Occult occultations for your city
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Jupiter's moons in July 2027

Io · Europa · Ganymede · Callisto · 2 mutual events

Jupiter's four big moons put on a show every night. They pass behind it, into its shadow and across its face, and their shadows cross its clouds. Any telescope shows it. This is a mutual-event season: the moons' orbits are edge-on to the Sun, so they eclipse and hide each other. Pick your place to see only what's visible from there.

Where the moons are

Jupiter · July 2027

Jupiter's equator horizontal, east to the left as in binoculars. Drag through the month or tap an event to jump to it. Full screen (⤢) steps through one night minute by minute. A faded moon is behind the planet; an empty ring is a moon in its shadow. Positions ±0.1 Jupiter radii, for the picture; the times come from JPL.

Events

7 events you can see from New Delhi this month, on 6 nights

Mon
Tue
Wed
Thu
Fri
Sat
Sun
1221
3
4
5
6
7
8191101
11
12
13
14
15
161
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
behind the planetin its shadowcrossing its faceshadow on the planetmoons eclipse or hide each other

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 Thu 1 Jul

  1. Io crosses Jupiter
    20:19 enters → 22:37 leaves · 2 h 19 min
    Jupiter 23° up · dusk
  2. Io's shadow crosses Jupiter
    21:14 enters → 23:31 leaves · 2 h 17 min
    Jupiter 11° up · dark sky

Night of Fri 2 Jul

  1. Io in Jupiter's shadow
    disappears unseen → 20:49 reappears · 2 h 17 min
    Jupiter 15° up · dark sky

Night of Thu 8 Jul

  1. Callisto in Jupiter's shadow
    20:50 disappears → 01:05 reappears · 4 h 15 min
    Jupiter 11° up · dark sky

Night of Fri 9 Jul

  1. Europa's shadow crosses Jupiter
    17:44 enters → 20:32 leaves · 2 h 48 min
    Jupiter 51° up · daylight

Night of Sat 10 Jul

  1. Io's shadow crosses Jupiter
    17:38 enters → 19:55 leaves · 2 h 17 min
    Jupiter 51° up · daylight

Night of Fri 16 Jul

  1. Europa's shadow crosses Jupiter
    20:19 enters → 23:06 leaves · 2 h 47 min
    Jupiter 12° up · dark sky

Reading the list

Times are when the moon's centre crosses the edge of Jupiter or its shadow, as in published tables. The whole disc takes a few minutes. 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: JPL DE431 and jup365, with Jupiter as a flattened globe. Mutual-event brightness drops are estimates. Each event happens at the same instant everywhere on Earth.