Jupiter's moons in May 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 |
|---|---|---|
| May 1 00:18 UTC | Io begins its transit across the disctakes 4 min | — |
| May 1 01:18 UTC | Io's shadow enters the disctakes 5 min | — |
| May 1 02:32 UTC | Io's transit endstakes 4 min | — |
| May 1 03:30 UTC | Io's shadow leaves the disctakes 7 min | — |
| May 1 03:46 UTC | Europa disappears behind Jupitertakes 4 min | — |
| May 1 08:26 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| May 1 11:17 UTC | Ganymede begins its transit across the disctakes 9 min | — |
| May 1 14:26 UTC | Ganymede's transit endstakes 9 min | — |
| May 1 15:25 UTC | Ganymede's shadow enters the disctakes 8 min | — |
| May 1 18:24 UTC | Ganymede's shadow leaves the disctakes 9 min | — |
| May 1 18:34 UTC | Ganymede's shadow enters the disc | — |
| May 1 18:38 UTC | Ganymede's shadow leaves the disc | — |
| May 1 21:34 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 2 00:51 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 2 18:45 UTC | Io begins its transit across the disctakes 4 min | — |
| May 2 19:47 UTC | Io's shadow enters the disctakes 3 min | — |
| May 2 21:00 UTC | Io's transit endstakes 4 min | — |
| May 2 21:59 UTC | Io's shadow leaves the disctakes 6 min | — |
| May 2 22:37 UTC | Europa begins its transit across the disctakes 4 min | — |
| May 3 00:44 UTC | Europa's shadow enters the disctakes 3 min | — |
| May 3 01:20 UTC | Europa's transit endstakes 4 min | — |
| May 3 03:23 UTC | Europa's shadow leaves the disctakes 4 min | — |
| May 3 03:28 UTC | Europa's shadow enters the disc | — |
| May 3 03:30 UTC | Europa's shadow leaves the disc | — |
| May 3 16:02 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 3 19:20 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 4 13:12 UTC | Io begins its transit across the disctakes 4 min | — |
| May 4 14:15 UTC | Io's shadow enters the disctakes 3 min | — |
| May 4 15:27 UTC | Io's transit endstakes 4 min | — |
| May 4 16:27 UTC | Io's shadow leaves the disctakes 4 min | — |
| May 4 16:58 UTC | Europa disappears behind Jupitertakes 4 min | — |
| May 4 17:25 UTC | Callisto disappears behind Jupitertakes 22 min | — |
| May 4 19:45 UTC | Callisto reappears from behind Jupitertakes 22 min | — |
| May 4 21:43 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| May 5 01:08 UTC | Ganymede disappears behind Jupitertakes 9 min | — |
| May 5 04:01 UTC | Callisto disappears into Jupiter's shadow | — |
| May 5 04:19 UTC | Ganymede reappears from behind Jupitertakes 9 min | — |
| May 5 05:32 UTC | Ganymede disappears into Jupiter's shadowtakes 10 min | — |
| May 5 05:49 UTC | Callisto reappears from Jupiter's shadow | — |
| May 5 08:33 UTC | Ganymede reappears from Jupiter's shadowtakes 10 min | — |
| May 5 10:29 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 5 13:49 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 6 07:40 UTC | Io begins its transit across the disctakes 4 min | — |
| May 6 08:44 UTC | Io's shadow enters the disctakes 6 min | — |
| May 6 09:54 UTC | Io's transit endstakes 4 min | — |
| May 6 10:56 UTC | Io's shadow leaves the disctakes 4 min | — |
| May 6 11:51 UTC | Europa begins its transit across the disctakes 4 min | — |
| May 6 14:03 UTC | Europa's shadow enters the disctakes 3 min | — |
| May 6 14:33 UTC | Europa's transit endstakes 4 min | — |
| May 6 16:42 UTC | Europa's shadow leaves the disctakes 7 min | — |
| May 7 04:57 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 7 08:18 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 8 02:07 UTC | Io begins its transit across the disctakes 4 min | — |
| May 8 03:13 UTC | Io's shadow enters the disctakes 3 min | — |
| May 8 04:22 UTC | Io's transit endstakes 4 min | — |
| May 8 05:24 UTC | Io's shadow leaves the disctakes 6 min | — |
| May 8 06:10 UTC | Europa disappears behind Jupitertakes 4 min | — |
| May 8 11:01 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| May 8 14:55 UTC | Ganymede begins its transit across the disctakes 9 min | — |
| May 8 18:05 UTC | Ganymede's transit endstakes 9 min | — |
| May 8 19:25 UTC | Ganymede's shadow enters the disctakes 8 min | — |
| May 8 22:24 UTC | Ganymede's shadow leaves the disctakes 8 min | — |
| May 8 22:33 UTC | Ganymede's shadow enters the disc | — |
| May 8 22:38 UTC | Ganymede's shadow leaves the disc | — |
| May 8 23:24 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 9 02:46 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 9 20:35 UTC | Io begins its transit across the disctakes 4 min | — |
| May 9 21:41 UTC | Io's shadow enters the disctakes 3 min | — |
| May 9 22:49 UTC | Io's transit endstakes 4 min | — |
| May 9 23:53 UTC | Io's shadow leaves the disctakes 4 min | — |
| May 10 01:04 UTC | Europa begins its transit across the disctakes 4 min | — |
| May 10 03:21 UTC | Europa's shadow enters the disctakes 3 min | — |
| May 10 03:47 UTC | Europa's transit endstakes 4 min | — |
| May 10 06:00 UTC | Europa's shadow leaves the disctakes 7 min | — |
| May 10 17:52 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 10 21:15 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 11 15:02 UTC | Io begins its transit across the disctakes 4 min | — |
| May 11 16:10 UTC | Io's shadow enters the disctakes 6 min | — |
| May 11 17:17 UTC | Io's transit endstakes 4 min | — |
| May 11 18:21 UTC | Io's shadow leaves the disctakes 4 min | — |
| May 11 19:23 UTC | Europa disappears behind Jupitertakes 4 min | — |
| May 12 00:18 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| May 12 04:48 UTC | Ganymede disappears behind Jupitertakes 9 min | — |
| May 12 08:00 UTC | Ganymede reappears from behind Jupitertakes 9 min | — |
| May 12 09:32 UTC | Ganymede disappears into Jupiter's shadowtakes 10 min | — |
| May 12 12:20 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 12 12:31 UTC | Ganymede reappears from Jupiter's shadowtakes 10 min | — |
| May 12 15:44 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 13 02:16 UTC | Callisto begins its transit across the disctakes 20 min | — |
| May 13 04:46 UTC | Callisto's transit endstakes 20 min | — |
| May 13 09:30 UTC | Io begins its transit across the disctakes 4 min | — |
| May 13 10:39 UTC | Io's shadow enters the disctakes 3 min | — |
| May 13 11:45 UTC | Io's transit endstakes 4 min | — |
| May 13 12:50 UTC | Io's shadow leaves the disctakes 7 min | — |
| May 13 13:22 UTC | Callisto's shadow enters the disctakes 34 min | — |
| May 13 14:18 UTC | Europa begins its transit across the disctakes 4 min | — |
| May 13 14:46 UTC | Callisto's shadow leaves the disctakes 24 min | — |
| May 13 15:10 UTC | Callisto's shadow enters the disc | — |
| May 13 15:24 UTC | Callisto's shadow leaves the disc | — |
| May 13 16:40 UTC | Europa's shadow enters the disctakes 5 min | — |
| May 13 17:02 UTC | Europa's transit endstakes 4 min | — |
| May 13 19:18 UTC | Europa's shadow leaves the disctakes 8 min | — |
| May 14 06:48 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 14 10:13 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 15 03:57 UTC | Io begins its transit across the disctakes 4 min | — |
| May 15 05:07 UTC | Io's shadow enters the disctakes 3 min | — |
| May 15 06:13 UTC | Io's transit endstakes 4 min | — |
| May 15 07:19 UTC | Io's shadow leaves the disctakes 7 min | — |
| May 15 08:36 UTC | Europa disappears behind Jupitertakes 4 min | — |
| May 15 13:35 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| May 15 18:37 UTC | Ganymede begins its transit across the disctakes 9 min | — |
| May 15 21:48 UTC | Ganymede's transit endstakes 9 min | — |
| May 15 23:25 UTC | Ganymede's shadow enters the disctakes 11 min | — |
| May 16 01:15 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 16 02:22 UTC | Ganymede's shadow leaves the disctakes 14 min | — |
| May 16 04:41 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 16 22:25 UTC | Io begins its transit across the disctakes 4 min | — |
| May 16 23:36 UTC | Io's shadow enters the disctakes 6 min | — |
| May 17 00:40 UTC | Io's transit endstakes 4 min | — |
| May 17 01:47 UTC | Io's shadow leaves the disctakes 4 min | — |
| May 17 03:33 UTC | Europa begins its transit across the disctakes 4 min | — |
| May 17 05:58 UTC | Europa's shadow enters the disctakes 3 min | — |
| May 17 06:16 UTC | Europa's transit endstakes 4 min | — |
| May 17 08:36 UTC | Europa's shadow leaves the disctakes 8 min | — |
| May 17 19:43 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 17 23:10 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 18 16:53 UTC | Io begins its transit across the disctakes 4 min | — |
| May 18 18:05 UTC | Io's shadow enters the disctakes 3 min | — |
| May 18 19:08 UTC | Io's transit endstakes 4 min | — |
| May 18 20:16 UTC | Io's shadow leaves the disctakes 7 min | — |
| May 18 21:50 UTC | Europa disappears behind Jupitertakes 4 min | — |
| May 19 02:53 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| May 19 08:32 UTC | Ganymede disappears behind Jupitertakes 9 min | — |
| May 19 11:45 UTC | Ganymede reappears from behind Jupitertakes 9 min | — |
| May 19 13:31 UTC | Ganymede disappears into Jupiter's shadowtakes 10 min | — |
| May 19 14:11 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 19 16:30 UTC | Ganymede reappears from Jupiter's shadowtakes 10 min | — |
| May 19 17:39 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 20 11:21 UTC | Io begins its transit across the disctakes 4 min | — |
| May 20 12:33 UTC | Io's shadow enters the disctakes 3 min | — |
| May 20 13:36 UTC | Io's transit endstakes 4 min | — |
| May 20 14:45 UTC | Io's shadow leaves the disctakes 4 min | — |
| May 20 16:49 UTC | Europa begins its transit across the disctakes 4 min | — |
| May 20 19:17 UTC | Europa's shadow enters the disctakes 3 min | — |
| May 20 19:32 UTC | Europa's transit endstakes 4 min | — |
| May 20 21:54 UTC | Europa's shadow leaves the disctakes 5 min | — |
| May 20 22:00 UTC | Europa's shadow enters the disc | — |
| May 20 22:02 UTC | Europa's shadow leaves the disc | — |
| May 21 08:40 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 21 09:50 UTC | Callisto disappears behind Jupitertakes 20 min | — |
| May 21 12:08 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 21 12:26 UTC | Callisto reappears from behind Jupitertakes 20 min | — |
| May 21 22:10 UTC | Callisto disappears into Jupiter's shadow | — |
| May 21 23:40 UTC | Callisto reappears from Jupiter's shadow | — |
| May 22 05:49 UTC | Io begins its transit across the disctakes 4 min | — |
| May 22 07:02 UTC | Io's shadow enters the disctakes 5 min | — |
| May 22 08:04 UTC | Io's transit endstakes 4 min | — |
| May 22 09:13 UTC | Io's shadow leaves the disctakes 4 min | — |
| May 22 11:05 UTC | Europa disappears behind Jupitertakes 4 min | — |
| May 22 16:10 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| May 22 22:24 UTC | Ganymede begins its transit across the disctakes 9 min | — |
| May 23 01:36 UTC | Ganymede's transit endstakes 9 min | — |
| May 23 03:08 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 23 03:24 UTC | Ganymede's shadow enters the disctakes 11 min | — |
| May 23 06:20 UTC | Ganymede's shadow leaves the disctakes 15 min | — |
| May 23 06:36 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 24 00:17 UTC | Io begins its transit across the disctakes 4 min | — |
| May 24 01:31 UTC | Io's shadow enters the disctakes 3 min | — |
| May 24 02:32 UTC | Io's transit endstakes 4 min | — |
| May 24 03:42 UTC | Io's shadow leaves the disctakes 7 min | — |
| May 24 06:04 UTC | Europa begins its transit across the disctakes 4 min | — |
| May 24 08:35 UTC | Europa's shadow enters the disctakes 3 min | — |
| May 24 08:48 UTC | Europa's transit endstakes 4 min | — |
| May 24 11:12 UTC | Europa's shadow leaves the disctakes 5 min | — |
| May 24 11:18 UTC | Europa's shadow enters the disc | — |
| May 24 11:20 UTC | Europa's shadow leaves the disc | — |
| May 24 21:36 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 25 01:05 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 25 18:45 UTC | Io begins its transit across the disctakes 4 min | — |
| May 25 19:59 UTC | Io's shadow enters the disctakes 3 min | — |
| May 25 21:00 UTC | Io's transit endstakes 4 min | — |
| May 25 22:10 UTC | Io's shadow leaves the disctakes 4 min | — |
| May 26 00:20 UTC | Europa disappears behind Jupitertakes 4 min | — |
| May 26 05:28 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| May 26 12:21 UTC | Ganymede disappears behind Jupitertakes 9 min | — |
| May 26 15:35 UTC | Ganymede reappears from behind Jupitertakes 9 min | — |
| May 26 16:04 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 26 17:31 UTC | Ganymede disappears into Jupiter's shadowtakes 10 min | — |
| May 26 19:34 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 26 20:28 UTC | Ganymede reappears from Jupiter's shadowtakes 10 min | — |
| May 27 13:13 UTC | Io begins its transit across the disctakes 4 min | — |
| May 27 14:28 UTC | Io's shadow enters the disctakes 5 min | — |
| May 27 15:29 UTC | Io's transit endstakes 4 min | — |
| May 27 16:39 UTC | Io's shadow leaves the disctakes 4 min | — |
| May 27 19:21 UTC | Europa begins its transit across the disctakes 4 min | — |
| May 27 21:54 UTC | Europa's shadow enters the disctakes 6 min | — |
| May 27 22:04 UTC | Europa's transit endstakes 4 min | — |
| May 28 00:31 UTC | Europa's shadow leaves the disctakes 4 min | — |
| May 28 00:36 UTC | Europa's shadow enters the disc | — |
| May 28 00:38 UTC | Europa's shadow leaves the disc | — |
| May 28 10:33 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 28 14:03 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 29 07:42 UTC | Io begins its transit across the disctakes 4 min | — |
| May 29 08:57 UTC | Io's shadow enters the disctakes 3 min | — |
| May 29 09:57 UTC | Io's transit endstakes 4 min | — |
| May 29 11:08 UTC | Io's shadow leaves the disctakes 7 min | — |
| May 29 13:36 UTC | Europa disappears behind Jupitertakes 4 min | — |
| May 29 18:45 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| May 29 19:10 UTC | Callisto begins its transit across the disctakes 18 min | — |
| May 29 21:51 UTC | Callisto's transit endstakes 18 min | — |
| May 30 02:14 UTC | Ganymede begins its transit across the disctakes 9 min | — |
| May 30 05:01 UTC | Io disappears behind Jupitertakes 4 min | — |
| May 30 05:27 UTC | Ganymede's transit endstakes 9 min | — |
| May 30 07:23 UTC | Ganymede's shadow enters the disctakes 10 min | — |
| May 30 07:27 UTC | Callisto's shadow enters the disc | — |
| May 30 08:31 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| May 30 09:14 UTC | Callisto's shadow leaves the disc | — |
| May 30 10:18 UTC | Ganymede's shadow leaves the disctakes 15 min | — |
| May 31 02:10 UTC | Io begins its transit across the disctakes 4 min | — |
| May 31 03:26 UTC | Io's shadow enters the disctakes 3 min | — |
| May 31 04:25 UTC | Io's transit endstakes 4 min | — |
| May 31 05:36 UTC | Io's shadow leaves the disctakes 4 min | — |
| May 31 08:37 UTC | Europa begins its transit across the disctakes 4 min | — |
| May 31 11:12 UTC | Europa's shadow enters the disctakes 6 min | — |
| May 31 11:21 UTC | Europa's transit endstakes 4 min | — |
| May 31 13:48 UTC | Europa's shadow leaves the disctakes 5 min | — |
| May 31 13:54 UTC | Europa's shadow enters the disc | — |
| May 31 13:56 UTC | Europa's shadow leaves the disc | — |
| May 31 23:29 UTC | Io disappears behind Jupitertakes 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.