Jupiter's moons in March 2027
Io · Europa · Ganymede · Callisto — eclipses, occultations, transits, shadows, and 16 mutual events
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. This is a mutual-event season — every six years the moons' orbits turn edge-on to the Sun and they eclipse and occult each other. 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 |
|---|---|---|
| Mar 1 12:13 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 1 12:39 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 1 14:30 UTC | Io's transit endstakes 4 min | — |
| Mar 1 14:56 UTC | Io's shadow leaves the disctakes 4 min | — |
| Mar 1 17:31 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Mar 1 21:16 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Mar 1 22:10 UTC | Io eclipses Ganymede2.8 min · 1% of Ganymede covered · drops ≈0.0 mag | — |
| Mar 2 04:54 UTC | Ganymede disappears behind Jupitertakes 8 min | — |
| Mar 2 09:30 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 2 10:26 UTC | Ganymede reappears from Jupiter's shadowtakes 8 min | — |
| Mar 2 12:17 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 2 16:17 UTC | Io eclipses Ganymede134.6 min · 9% of Ganymede covered · drops ≈0.1 mag | — |
| Mar 3 06:39 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 3 07:08 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 3 08:56 UTC | Io's transit endstakes 4 min | — |
| Mar 3 09:25 UTC | Io's shadow leaves the disctakes 4 min | — |
| Mar 3 12:28 UTC | Europa begins its transit across the disctakes 4 min | — |
| Mar 3 13:28 UTC | Europa's shadow enters the disctakes 6 min | — |
| Mar 3 15:20 UTC | Europa's transit endstakes 4 min | — |
| Mar 3 16:20 UTC | Europa's shadow leaves the disctakes 5 min | — |
| Mar 4 03:57 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 4 06:45 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 4 20:14 UTC | Callisto begins its transit across the disctakes 10 min | — |
| Mar 5 00:53 UTC | Callisto's transit endstakes 10 min | — |
| Mar 5 01:05 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 5 01:08 UTC | Callisto's shadow enters the disctakes 12 min | — |
| Mar 5 01:36 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 5 03:22 UTC | Io's transit endstakes 4 min | — |
| Mar 5 03:53 UTC | Io's shadow leaves the disctakes 5 min | — |
| Mar 5 05:48 UTC | Callisto's shadow leaves the disctakes 8 min | — |
| Mar 5 05:56 UTC | Callisto's shadow enters the disc | — |
| Mar 5 06:01 UTC | Callisto's shadow leaves the disc | — |
| Mar 5 06:39 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Mar 5 10:33 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Mar 5 18:38 UTC | Ganymede begins its transit across the disctakes 8 min | — |
| Mar 5 20:49 UTC | Ganymede's shadow enters the disctakes 10 min | — |
| Mar 5 22:15 UTC | Ganymede's transit endstakes 8 min | — |
| Mar 5 22:23 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 6 00:26 UTC | Ganymede's shadow leaves the disctakes 6 min | — |
| Mar 6 00:32 UTC | Ganymede's shadow enters the disc | — |
| Mar 6 00:36 UTC | Ganymede's shadow leaves the disc | — |
| Mar 6 01:14 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 6 19:31 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 6 20:05 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 6 21:49 UTC | Io's transit endstakes 4 min | — |
| Mar 6 22:22 UTC | Io's shadow leaves the disctakes 5 min | — |
| Mar 7 01:36 UTC | Europa begins its transit across the disctakes 4 min | — |
| Mar 7 02:46 UTC | Europa's shadow enters the disctakes 6 min | — |
| Mar 7 04:29 UTC | Europa's transit endstakes 4 min | — |
| Mar 7 05:38 UTC | Europa's shadow leaves the disctakes 5 min | — |
| Mar 7 16:49 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 7 19:43 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 8 13:58 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 8 14:34 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 8 16:15 UTC | Io's transit endstakes 4 min | — |
| Mar 8 16:50 UTC | Io's shadow leaves the disctakes 5 min | — |
| Mar 8 19:47 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Mar 8 23:36 UTC | Io occults Ganymede1.8 min · 0% of Ganymede covered · drops ≈0.0 mag | — |
| Mar 8 23:51 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Mar 9 01:34 UTC | Io eclipses Ganymede3.5 min · 0% of Ganymede covered · drops ≈0.0 mag | — |
| Mar 9 08:16 UTC | Ganymede disappears behind Jupitertakes 8 min | — |
| Mar 9 11:16 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 9 13:34 UTC | Io eclipses Ganymede18.1 min · 18% of Ganymede covered · drops ≈0.2 mag | — |
| Mar 9 14:11 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 9 14:26 UTC | Ganymede reappears from Jupiter's shadowtakes 8 min | — |
| Mar 9 16:54 UTC | Io occults Ganymede40.2 min · 13% of Ganymede covered · drops ≈0.1 mag | — |
| Mar 9 19:57 UTC | Io occults Ganymede24.0 min · 3% of Ganymede covered · drops ≈0.0 mag | — |
| Mar 10 08:24 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 10 09:02 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 10 10:41 UTC | Io's transit endstakes 4 min | — |
| Mar 10 11:19 UTC | Io's shadow leaves the disctakes 3 min | — |
| Mar 10 14:45 UTC | Europa begins its transit across the disctakes 4 min | — |
| Mar 10 16:04 UTC | Europa's shadow enters the disctakes 3 min | — |
| Mar 10 17:38 UTC | Europa's transit endstakes 4 min | — |
| Mar 10 18:56 UTC | Europa's shadow leaves the disctakes 6 min | — |
| Mar 11 05:42 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 11 08:40 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 12 02:50 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 12 03:31 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 12 05:08 UTC | Io's transit endstakes 4 min | — |
| Mar 12 05:47 UTC | Io's shadow leaves the disctakes 5 min | — |
| Mar 12 08:56 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Mar 12 13:08 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Mar 12 22:00 UTC | Ganymede begins its transit across the disctakes 8 min | — |
| Mar 13 00:09 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 13 00:48 UTC | Ganymede's shadow enters the disctakes 10 min | — |
| Mar 13 01:37 UTC | Ganymede's transit endstakes 8 min | — |
| Mar 13 02:05 UTC | Callisto disappears behind Jupitertakes 10 min | — |
| Mar 13 03:09 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 13 04:24 UTC | Ganymede's shadow leaves the disctakes 6 min | — |
| Mar 13 04:30 UTC | Ganymede's shadow enters the disc | — |
| Mar 13 04:34 UTC | Ganymede's shadow leaves the disc | — |
| Mar 13 06:49 UTC | Callisto reappears from behind Jupitertakes 10 min | — |
| Mar 13 08:49 UTC | Callisto disappears into Jupiter's shadowtakes 10 min | — |
| Mar 13 13:28 UTC | Callisto reappears from Jupiter's shadowtakes 10 min | — |
| Mar 13 21:17 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 13 22:00 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 13 23:34 UTC | Io's transit endstakes 4 min | — |
| Mar 14 00:16 UTC | Io's shadow leaves the disctakes 5 min | — |
| Mar 14 03:55 UTC | Europa begins its transit across the disctakes 4 min | — |
| Mar 14 05:22 UTC | Europa's shadow enters the disctakes 3 min | — |
| Mar 14 06:47 UTC | Europa's transit endstakes 4 min | — |
| Mar 14 08:14 UTC | Europa's shadow leaves the disctakes 5 min | — |
| Mar 14 18:35 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 14 21:38 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 15 15:43 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 15 16:28 UTC | Io's shadow enters the disctakes 5 min | — |
| Mar 15 18:01 UTC | Io's transit endstakes 4 min | — |
| Mar 15 18:44 UTC | Io's shadow leaves the disctakes 3 min | — |
| Mar 15 22:05 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Mar 16 02:26 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Mar 16 02:29 UTC | Io occults Ganymede7.6 min · 9% of Ganymede covered · drops ≈0.1 mag | — |
| Mar 16 05:42 UTC | Io eclipses Ganymede10.7 min · 3% of Ganymede covered · drops ≈0.0 mag | — |
| Mar 16 11:40 UTC | Ganymede disappears behind Jupitertakes 8 min | — |
| Mar 16 11:43 UTC | Io eclipses Ganymede22.9 min · 16% of Ganymede covered · drops ≈0.2 mag | — |
| Mar 16 13:02 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 16 15:10 UTC | Io occults Ganymede21.0 min · 29% of Ganymede covered · drops ≈0.2 mag | — |
| Mar 16 16:06 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 16 18:25 UTC | Ganymede reappears from Jupiter's shadowtakes 8 min | — |
| Mar 17 00:34 UTC | Io occults Ganymede4.1 min · 0% of Ganymede covered · drops ≈0.0 mag | — |
| Mar 17 10:10 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 17 10:57 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 17 12:28 UTC | Io's transit endstakes 4 min | — |
| Mar 17 13:13 UTC | Io's shadow leaves the disctakes 5 min | — |
| Mar 17 17:05 UTC | Europa begins its transit across the disctakes 4 min | — |
| Mar 17 18:41 UTC | Europa's shadow enters the disctakes 3 min | — |
| Mar 17 19:58 UTC | Europa's transit endstakes 4 min | — |
| Mar 17 21:32 UTC | Europa's shadow leaves the disctakes 6 min | — |
| Mar 18 07:29 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 18 10:35 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 19 04:37 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 19 05:25 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 19 06:54 UTC | Io's transit endstakes 4 min | — |
| Mar 19 07:41 UTC | Io's shadow leaves the disctakes 5 min | — |
| Mar 19 11:14 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Mar 19 15:44 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Mar 20 01:25 UTC | Ganymede begins its transit across the disctakes 8 min | — |
| Mar 20 01:55 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 20 04:47 UTC | Ganymede's shadow enters the disctakes 9 min | — |
| Mar 20 05:03 UTC | Ganymede's transit endstakes 8 min | — |
| Mar 20 05:04 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 20 08:22 UTC | Ganymede's shadow leaves the disctakes 11 min | — |
| Mar 20 23:03 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 20 23:54 UTC | Io's shadow enters the disctakes 5 min | — |
| Mar 21 01:21 UTC | Io's transit endstakes 4 min | — |
| Mar 21 02:10 UTC | Io's shadow leaves the disctakes 4 min | — |
| Mar 21 06:15 UTC | Europa begins its transit across the disctakes 4 min | — |
| Mar 21 07:59 UTC | Europa's shadow enters the disctakes 3 min | — |
| Mar 21 09:08 UTC | Europa's transit endstakes 4 min | — |
| Mar 21 10:50 UTC | Europa's shadow leaves the disctakes 6 min | — |
| Mar 21 11:06 UTC | Callisto begins its transit across the disctakes 10 min | — |
| Mar 21 15:48 UTC | Callisto's transit endstakes 10 min | — |
| Mar 21 19:09 UTC | Callisto's shadow enters the disctakes 12 min | — |
| Mar 21 20:22 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 21 23:32 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 21 23:46 UTC | Callisto's shadow leaves the disctakes 15 min | — |
| Mar 22 17:30 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 22 18:23 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 22 19:48 UTC | Io's transit endstakes 4 min | — |
| Mar 22 20:38 UTC | Io's shadow leaves the disctakes 6 min | — |
| Mar 23 00:25 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Mar 23 05:01 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Mar 23 05:50 UTC | Io occults Ganymede14.7 min · 23% of Ganymede covered · drops ≈0.2 mag | — |
| Mar 23 14:01 UTC | Io occults Ganymede23.6 min · 38% of Ganymede covered · drops ≈0.3 mag | — |
| Mar 23 14:49 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 23 15:08 UTC | Ganymede disappears behind Jupitertakes 8 min | — |
| Mar 23 18:01 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 23 18:48 UTC | Ganymede reappears from behind Jupitertakes 8 min | — |
| Mar 23 18:48 UTC | Ganymede disappears into Jupiter's shadowtakes 8 min | — |
| Mar 23 22:25 UTC | Ganymede reappears from Jupiter's shadowtakes 8 min | — |
| Mar 24 03:51 UTC | Io occults Ganymede3.2 min · 0% of Ganymede covered · drops ≈0.0 mag | — |
| Mar 24 11:57 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 24 12:51 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 24 14:15 UTC | Io's transit endstakes 4 min | — |
| Mar 24 15:07 UTC | Io's shadow leaves the disctakes 6 min | — |
| Mar 24 19:27 UTC | Europa begins its transit across the disctakes 4 min | — |
| Mar 24 21:18 UTC | Europa's shadow enters the disctakes 3 min | — |
| Mar 24 22:19 UTC | Europa's transit endstakes 4 min | — |
| Mar 25 00:08 UTC | Europa's shadow leaves the disctakes 4 min | — |
| Mar 25 09:16 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 25 12:30 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 26 06:24 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 26 07:20 UTC | Io's shadow enters the disctakes 5 min | — |
| Mar 26 08:42 UTC | Io's transit endstakes 4 min | — |
| Mar 26 09:36 UTC | Io's shadow leaves the disctakes 4 min | — |
| Mar 26 13:35 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Mar 26 18:19 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Mar 27 03:43 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 27 04:55 UTC | Ganymede begins its transit across the disctakes 8 min | — |
| Mar 27 06:59 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 27 08:33 UTC | Ganymede's transit endstakes 8 min | — |
| Mar 27 08:46 UTC | Ganymede's shadow enters the disctakes 10 min | — |
| Mar 27 12:20 UTC | Ganymede's shadow leaves the disctakes 7 min | — |
| Mar 27 12:28 UTC | Ganymede's shadow enters the disc | — |
| Mar 27 12:32 UTC | Ganymede's shadow leaves the disc | — |
| Mar 28 00:51 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 28 01:49 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 28 03:09 UTC | Io's transit endstakes 4 min | — |
| Mar 28 04:04 UTC | Io's shadow leaves the disctakes 6 min | — |
| Mar 28 08:38 UTC | Europa begins its transit across the disctakes 4 min | — |
| Mar 28 10:36 UTC | Europa's shadow enters the disctakes 6 min | — |
| Mar 28 11:31 UTC | Europa's transit endstakes 4 min | — |
| Mar 28 13:26 UTC | Europa's shadow leaves the disctakes 3 min | — |
| Mar 28 22:11 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 29 01:27 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 29 17:20 UTC | Callisto disappears behind Jupitertakes 10 min | — |
| Mar 29 19:18 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 29 20:17 UTC | Io's shadow enters the disctakes 3 min | — |
| Mar 29 21:36 UTC | Io's transit endstakes 4 min | — |
| Mar 29 22:07 UTC | Callisto reappears from behind Jupitertakes 10 min | — |
| Mar 29 22:33 UTC | Io's shadow leaves the disctakes 6 min | — |
| Mar 30 02:47 UTC | Europa disappears behind Jupitertakes 4 min | — |
| Mar 30 02:53 UTC | Callisto disappears into Jupiter's shadowtakes 10 min | — |
| Mar 30 07:29 UTC | Callisto reappears from Jupiter's shadowtakes 10 min | — |
| Mar 30 07:37 UTC | Europa reappears from Jupiter's shadowtakes 4 min | — |
| Mar 30 16:38 UTC | Io disappears behind Jupitertakes 4 min | — |
| Mar 30 18:41 UTC | Ganymede disappears behind Jupitertakes 8 min | — |
| Mar 30 19:56 UTC | Io reappears from Jupiter's shadowtakes 4 min | — |
| Mar 30 22:20 UTC | Ganymede reappears from behind Jupitertakes 8 min | — |
| Mar 30 22:47 UTC | Ganymede disappears into Jupiter's shadowtakes 8 min | — |
| Mar 31 02:24 UTC | Ganymede reappears from Jupiter's shadowtakes 8 min | — |
| Mar 31 06:49 UTC | Io occults Ganymede3.4 min · 2% of Ganymede covered · drops ≈0.0 mag | — |
| Mar 31 13:45 UTC | Io begins its transit across the disctakes 4 min | — |
| Mar 31 14:46 UTC | Io's shadow enters the disctakes 5 min | — |
| Mar 31 16:03 UTC | Io's transit endstakes 4 min | — |
| Mar 31 17:02 UTC | Io's shadow leaves the disctakes 4 min | — |
| Mar 31 21:50 UTC | Europa begins its transit across the disctakes 4 min | — |
| Mar 31 23:54 UTC | Europa's shadow enters the disctakes 5 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.