Jupiter's moons in April 2028
Io · Europa · Ganymede · Callisto — eclipses, occultations, transits, shadows
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. Times are for the whole Earth; pick a location and the list keeps only what your sky shows.
| When (UTC) | Event | Jupiter in your sky |
|---|---|---|
| Apr 1 00:03 UTC | Europa begins its transit across the disctakes 4 min | — |
| Apr 1 00:58 UTC | Europa's shadow enters the disctakes 3 min | — |
| Apr 1 00:59 UTC | Io's transit endstakes 4 min | — |
| Apr 1 01:26 UTC | Io's shadow leaves the disctakes 4 min | — |
| Apr 1 02:43 UTC | Europa's transit endstakes 4 min | — |
| Apr 1 03:40 UTC | Europa's shadow leaves the disctakes 6 min | — |
| Apr 1 11:27 UTC | Callisto disappears behind Jupitertakes 41 min | — |
| Apr 1 12:42 UTC | Callisto reappears from behind Jupitertakes 41 min | — |
| Apr 1 15:46 UTC | Callisto disappears into Jupiter's shadowtakes 27 min | — |
| Apr 1 17:39 UTC | Callisto reappears from Jupiter's shadowtakes 27 min | — |
| Apr 1 19:59 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 1 22:43 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 2 17:11 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 2 17:41 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 2 18:31 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Apr 2 19:25 UTC | Io's transit endstakes 4 min | — |
| Apr 2 19:54 UTC | Io's shadow leaves the disctakes 5 min | — |
| Apr 2 21:31 UTC | Ganymede begins its transit across the disctakes 10 min | — |
| Apr 2 22:09 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Apr 2 23:30 UTC | Ganymede's shadow enters the disctakes 11 min | — |
| Apr 3 00:34 UTC | Ganymede's transit endstakes 10 min | — |
| Apr 3 02:36 UTC | Ganymede's shadow leaves the disctakes 12 min | — |
| Apr 3 14:25 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 3 17:12 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 4 11:37 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 4 12:09 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 4 13:11 UTC | Europa begins its transit across the disctakes 4 min | — |
| Apr 4 13:52 UTC | Io's transit endstakes 4 min | — |
| Apr 4 14:16 UTC | Europa's shadow enters the disctakes 3 min | — |
| Apr 4 14:23 UTC | Io's shadow leaves the disctakes 3 min | — |
| Apr 4 15:52 UTC | Europa's transit endstakes 4 min | — |
| Apr 4 16:58 UTC | Europa's shadow leaves the disctakes 6 min | — |
| Apr 5 08:52 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 5 11:41 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 6 06:04 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 6 06:38 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 6 07:39 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Apr 6 08:18 UTC | Io's transit endstakes 4 min | — |
| Apr 6 08:51 UTC | Io's shadow leaves the disctakes 5 min | — |
| Apr 6 11:12 UTC | Ganymede disappears behind Jupitertakes 10 min | — |
| Apr 6 11:26 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Apr 6 16:38 UTC | Ganymede reappears from Jupiter's shadowtakes 10 min | — |
| Apr 7 03:18 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 7 06:09 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 8 00:30 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 8 01:06 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 8 02:20 UTC | Europa begins its transit across the disctakes 4 min | — |
| Apr 8 02:44 UTC | Io's transit endstakes 4 min | — |
| Apr 8 03:20 UTC | Io's shadow leaves the disctakes 5 min | — |
| Apr 8 03:35 UTC | Europa's shadow enters the disctakes 3 min | — |
| Apr 8 05:02 UTC | Europa's transit endstakes 4 min | — |
| Apr 8 06:17 UTC | Europa's shadow leaves the disctakes 3 min | — |
| Apr 8 06:20 UTC | Europa's shadow enters the disc | — |
| Apr 8 06:22 UTC | Europa's shadow leaves the disc | — |
| Apr 8 21:45 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 9 00:38 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 9 18:56 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 9 19:19 UTC | Callisto begins its transit across the disctakes 28 min | — |
| Apr 9 19:35 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 9 20:47 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Apr 9 21:02 UTC | Callisto's transit endstakes 28 min | — |
| Apr 9 21:11 UTC | Io's transit endstakes 4 min | — |
| Apr 9 21:48 UTC | Io's shadow leaves the disctakes 5 min | — |
| Apr 10 00:43 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Apr 10 00:52 UTC | Ganymede begins its transit across the disctakes 10 min | — |
| Apr 10 01:13 UTC | Callisto's shadow enters the disctakes 24 min | — |
| Apr 10 03:16 UTC | Callisto's shadow leaves the disctakes 27 min | — |
| Apr 10 03:29 UTC | Ganymede's shadow enters the disctakes 11 min | — |
| Apr 10 03:56 UTC | Ganymede's transit endstakes 10 min | — |
| Apr 10 06:34 UTC | Ganymede's shadow leaves the disctakes 6 min | — |
| Apr 10 06:40 UTC | Ganymede's shadow enters the disc | — |
| Apr 10 06:45 UTC | Ganymede's shadow leaves the disc | — |
| Apr 10 16:11 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 10 19:07 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 11 13:23 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 11 14:03 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 11 15:30 UTC | Europa begins its transit across the disctakes 4 min | — |
| Apr 11 15:37 UTC | Io's transit endstakes 4 min | — |
| Apr 11 16:17 UTC | Io's shadow leaves the disctakes 3 min | — |
| Apr 11 16:53 UTC | Europa's shadow enters the disctakes 3 min | — |
| Apr 11 18:11 UTC | Europa's transit endstakes 4 min | — |
| Apr 11 19:34 UTC | Europa's shadow leaves the disctakes 4 min | — |
| Apr 11 19:38 UTC | Europa's shadow enters the disc | — |
| Apr 11 19:40 UTC | Europa's shadow leaves the disc | — |
| Apr 12 10:38 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 12 13:35 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 13 07:49 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 13 08:32 UTC | Io's shadow enters the disctakes 6 min | — |
| Apr 13 09:56 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Apr 13 10:04 UTC | Io's transit endstakes 4 min | — |
| Apr 13 10:45 UTC | Io's shadow leaves the disctakes 5 min | — |
| Apr 13 14:00 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Apr 13 14:36 UTC | Ganymede disappears behind Jupitertakes 10 min | — |
| Apr 13 20:38 UTC | Ganymede reappears from Jupiter's shadowtakes 10 min | — |
| Apr 14 05:04 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 14 08:04 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 15 02:16 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 15 03:01 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 15 04:30 UTC | Io's transit endstakes 4 min | — |
| Apr 15 04:40 UTC | Europa begins its transit across the disctakes 4 min | — |
| Apr 15 05:14 UTC | Io's shadow leaves the disctakes 5 min | — |
| Apr 15 06:12 UTC | Europa's shadow enters the disctakes 5 min | — |
| Apr 15 07:22 UTC | Europa's transit endstakes 4 min | — |
| Apr 15 08:53 UTC | Europa's shadow leaves the disctakes 6 min | — |
| Apr 15 23:31 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 16 02:33 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 16 20:42 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 16 21:29 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 16 22:57 UTC | Io's transit endstakes 4 min | — |
| Apr 16 23:05 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Apr 16 23:42 UTC | Io's shadow leaves the disctakes 4 min | — |
| Apr 17 03:17 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Apr 17 04:16 UTC | Ganymede begins its transit across the disctakes 10 min | — |
| Apr 17 07:22 UTC | Ganymede's transit endstakes 10 min | — |
| Apr 17 07:27 UTC | Ganymede's shadow enters the disctakes 10 min | — |
| Apr 17 10:30 UTC | Ganymede's shadow leaves the disctakes 13 min | — |
| Apr 17 17:58 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 17 21:02 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 18 02:00 UTC | Callisto disappears behind Jupitertakes 26 min | — |
| Apr 18 03:56 UTC | Callisto reappears from behind Jupitertakes 26 min | — |
| Apr 18 09:52 UTC | Callisto disappears into Jupiter's shadowtakes 33 min | — |
| Apr 18 11:25 UTC | Callisto reappears from Jupiter's shadowtakes 33 min | — |
| Apr 18 15:09 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 18 15:58 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 18 17:24 UTC | Io's transit endstakes 4 min | — |
| Apr 18 17:50 UTC | Europa begins its transit across the disctakes 4 min | — |
| Apr 18 18:10 UTC | Io's shadow leaves the disctakes 5 min | — |
| Apr 18 19:30 UTC | Europa's shadow enters the disctakes 3 min | — |
| Apr 18 20:32 UTC | Europa's transit endstakes 4 min | — |
| Apr 18 22:11 UTC | Europa's shadow leaves the disctakes 6 min | — |
| Apr 19 12:25 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 19 15:30 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 20 09:36 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 20 10:26 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 20 11:50 UTC | Io's transit endstakes 4 min | — |
| Apr 20 12:14 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Apr 20 12:39 UTC | Io's shadow leaves the disctakes 6 min | — |
| Apr 20 16:34 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Apr 20 18:02 UTC | Ganymede disappears behind Jupitertakes 10 min | — |
| Apr 20 21:11 UTC | Ganymede reappears from behind Jupitertakes 10 min | — |
| Apr 20 21:34 UTC | Ganymede disappears into Jupiter's shadowtakes 10 min | — |
| Apr 21 00:36 UTC | Ganymede reappears from Jupiter's shadowtakes 10 min | — |
| Apr 21 06:52 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 21 09:59 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 22 04:03 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 22 04:55 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 22 06:17 UTC | Io's transit endstakes 4 min | — |
| Apr 22 07:01 UTC | Europa begins its transit across the disctakes 4 min | — |
| Apr 22 07:07 UTC | Io's shadow leaves the disctakes 6 min | — |
| Apr 22 08:49 UTC | Europa's shadow enters the disctakes 3 min | — |
| Apr 22 09:44 UTC | Europa's transit endstakes 4 min | — |
| Apr 22 11:29 UTC | Europa's shadow leaves the disctakes 6 min | — |
| Apr 23 01:19 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 23 04:28 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 23 22:30 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 23 23:24 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 24 00:44 UTC | Io's transit endstakes 4 min | — |
| Apr 24 01:24 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Apr 24 01:36 UTC | Io's shadow leaves the disctakes 4 min | — |
| Apr 24 05:52 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Apr 24 07:44 UTC | Ganymede begins its transit across the disctakes 9 min | — |
| Apr 24 10:52 UTC | Ganymede's transit endstakes 9 min | — |
| Apr 24 11:26 UTC | Ganymede's shadow enters the disctakes 11 min | — |
| Apr 24 14:28 UTC | Ganymede's shadow leaves the disctakes 13 min | — |
| Apr 24 19:46 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 24 22:56 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 25 16:56 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 25 17:52 UTC | Io's shadow enters the disctakes 5 min | — |
| Apr 25 19:11 UTC | Io's transit endstakes 4 min | — |
| Apr 25 20:04 UTC | Io's shadow leaves the disctakes 6 min | — |
| Apr 25 20:12 UTC | Europa begins its transit across the disctakes 4 min | — |
| Apr 25 22:07 UTC | Europa's shadow enters the disctakes 3 min | — |
| Apr 25 22:55 UTC | Europa's transit endstakes 4 min | — |
| Apr 26 00:47 UTC | Europa's shadow leaves the disctakes 6 min | — |
| Apr 26 10:20 UTC | Callisto begins its transit across the disctakes 22 min | — |
| Apr 26 12:31 UTC | Callisto's transit endstakes 22 min | — |
| Apr 26 14:13 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 26 17:25 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 26 19:17 UTC | Callisto's shadow enters the disctakes 28 min | — |
| Apr 26 21:02 UTC | Callisto's shadow leaves the disctakes 32 min | — |
| Apr 27 11:23 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 27 12:21 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 27 13:38 UTC | Io's transit endstakes 4 min | — |
| Apr 27 14:33 UTC | Io's shadow leaves the disctakes 6 min | — |
| Apr 27 14:35 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Apr 27 19:09 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Apr 27 21:33 UTC | Ganymede disappears behind Jupitertakes 10 min | — |
| Apr 28 00:43 UTC | Ganymede reappears from behind Jupitertakes 10 min | — |
| Apr 28 01:33 UTC | Ganymede disappears into Jupiter's shadowtakes 10 min | — |
| Apr 28 04:35 UTC | Ganymede reappears from Jupiter's shadowtakes 10 min | — |
| Apr 28 08:40 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 28 11:54 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Apr 29 05:51 UTC | Io begins its transit across the disctakes 4 min | — |
| Apr 29 06:49 UTC | Io's shadow enters the disctakes 3 min | — |
| Apr 29 08:05 UTC | Io's transit endstakes 4 min | — |
| Apr 29 09:02 UTC | Io's shadow leaves the disctakes 4 min | — |
| Apr 29 09:25 UTC | Europa begins its transit across the disctakes 4 min | — |
| Apr 29 11:26 UTC | Europa's shadow enters the disctakes 3 min | — |
| Apr 29 12:07 UTC | Europa's transit endstakes 4 min | — |
| Apr 29 14:06 UTC | Europa's shadow leaves the disctakes 4 min | — |
| Apr 29 14:10 UTC | Europa's shadow enters the disc | — |
| Apr 29 14:12 UTC | Europa's shadow leaves the disc | — |
| Apr 30 03:07 UTC | Io disappears behind Jupitertakes 4 min | — |
| Apr 30 06:23 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
Reading the list
Each disappears / reappears line is the moment the moon's disc is fully in or first out; the "takes N min" is how long the disc takes to cross the edge. Halves that happen behind Jupiter or inside its shadow are left out, since nobody can see them. Positions are from JPL DE431 and the jup365 satellite ephemeris, Jupiter as an oblate spheroid with its shadow cone; mutual-event magnitude drops assume uniform discs and are estimates. Events are geocentric — the same instant everywhere on Earth to well under a second.