All events are given for geocentric coordinates, UT.
| Date | Time | Planet(s) | Event |
|---|---|---|---|
| 3 January | 10 h | Moon | full |
| 3 January | 18:15 | Earth | perihelion |
| 6 January | 06:22 | Sun, Venus | superior conjunction (42′) |
| 8 January | 03:11 | Venus, Mars | conjunction (10′) |
| 9 January | 09:38 | Sun, Mars | conjunction (56′) |
| 10 January | 9 h | Earth | transit (from Jupiter) |
| 18 January | 06:34 | Mercury, Mars | conjunction (58′) |
| 18 January | 20 h | Moon | new |
| 20 January | 02:16:35 | Sun | enters Capricornus |
| 21 January | 13:19 | Sun, Mercury | superior conjunction (2° 3′) |
| 29 January | 13:54 | Mercury, Venus | conjunction (41′) |
| 2 February | 23 h | Moon | full |
| 4 February | 02:14 | Uranus | prograde |
| 16 February | 12:52:25 | Sun | enters Aquarius |
| 16 February | 16:44-20:32 | Moon, Mars | occultation (visible from Antarctica) |
| 17 February | 12:13:06 | Moon | new, annular solar eclipse |
| 18 February | 20:58-01:39 | Moon, Mercury | occultation (visible from Central America and the southern US) |
| 20 February | 19:58 | Saturn, Neptune | conjunction (50′) |
| 25 February | 16:46 | Mercury | retrograde |
| 27 February | 21:44 | Mercury, Venus | conjunction (4° 31′) |
| 3 March | 11:33:37 | Moon | full, total lunar eclipse |
| 7 March | 11:24 | Venus, Neptune | conjunction (4′) |
| 7 March | 12:19 | Sun, Mercury | inferior conjunction (3° 38′) |
| 8 March | 13:15 | Venus, Saturn | conjunction (55′) |
| 8 March | 17:55 | Earth | 2026 Koblenz meteor |
| 11 March | 02:27 | Jupiter | prograde |
| 12 March | 14:27:02 | Sun | enters Pisces |
| 15 March | 19:07 | Mercury, Mars | conjunction (3° 22′) |
| 17 March | 12:57 | Earth | 2026 Cleveland meteor |
| 19 March | 1 h | Moon | new |
| 19 March | 19:50 | Mercury | prograde |
| 20 March | 14:45:58 | Earth | vernal equinox |
| 22 March | 11:17 | Sun, Neptune | conjunction (1° 18′) |
| 25 March | 08:52 | Sun, Saturn | conjunction (2° 8′) |
| 2 April | 2 h | Moon | full |
| 9 April | 19:37 | Neptune | besiegement start |
| 13 April | 05:25 | Mars, Neptune | conjunction (19′) |
| 13 April | 05:30 | Neptune | besiegement end |
| 15 April | 22 h | Moon | besiegement start |
| 16 April | 3 h | Moon | besiegement end |
| 17 April | 01:51 | Mercury, Neptune | conjunction (1° 19′) |
| 17 April | 11 h | Moon | new |
| 19 April | 02:26:40 | Sun | enters Aries |
| 19 April | 22:14 | Mars, Saturn | conjunction (1° 12′) |
| 20 April | 11:28 | Mercury, Saturn | conjunction (28′) |
| 20 April | 13:20 | Mercury | besiegement start |
| 20 April | 22:50 | Mercury, Mars | conjunction (1° 39′) |
| 20 April | 23:00 | Mercury | besiegement end |
| 24 April | 01:20 | Venus, Uranus | conjunction (45′) |
| 1 May | 17 h | Moon | full |
| 6 May | 1 h | Mars | transit (from Neptune) |
| 13 May | 20:10 | Moon | besiegement start |
| 13 May | 23:33 | Moon | besiegement end |
| 14 May | 13:54:20 | Sun | enters Taurus |
| 14 May | 13:58 | Sun, Mercury | superior conjunction (9′), occultation |
| 16 May | 20 h | Moon | new |
| 17 May | 23:21 | Mercury, Uranus | conjunction (54′) |
| 22 May | 14:25 | Sun, Uranus | conjunction (10′), occultation |
| 31 May | 9 h | Moon | full |
| 9 June | 19:47 | Venus, Jupiter | conjunction (1° 36′) |
| 15 June | 3 h | Moon | new |
| 17 June | 18:28-22:55 | Moon, Venus | occultation (visible from northern South America and western Africa) |
| 21 June | 08:24:30 | Earth | summer solstice |
| 21 June | 21:16:48 | Sun | enters Gemini |
| 25 June | 12:10 | Mercury, Jupiter | conjunction (3° 44′) |
| 29 June | 02:09 | Mercury | retrograde |
| 30 June | 0 h | Moon | full |
| 4 July | 06:10 | Mars, Uranus | conjunction (6′) |
| 6 July | 19:30 | Earth | aphelion |
| 7 July | 22:40 | Neptune | retrograde |
| 12 July | 22:02 | Sun, Mercury | inferior conjunction (4° 50′) |
| 14 July | 10 h | Moon | new |
| 21 July | 02:02:11 | Sun | enters Cancer |
| 23 July | 17:22 | Mercury | prograde |
| 27 July | 21:02 | Saturn | retrograde |
| 29 July | 12:15 | Sun, Jupiter | conjunction (28′) |
| 29 July | 15 h | Moon | full |
| 11 August | 01:07:23 | Sun | enters Leo |
| 12 August | 17:47:06 | Moon | new, total solar eclipse |
| 15 August | 10 h | Venus | maximum elongation |
| 15 August | 10:42 | Mercury, Jupiter | conjunction (33′) |
| 27 August | 17:55 | Sun, Mercury | superior conjunction (1° 45′) |
| 28 August | 4:12:49 | Moon | full, partial lunar eclipse |
| 8 September | 17:53-21:18 | Moon, Jupiter | occultation (visible from Arctic Circle) |
| 10 September | 15:38 | Uranus | retrograde |
| 11 September | 3 h | Moon | new |
| 14 September | 09:29-13:46 | Moon, Venus | occultation (visible from India and Southeast Asia) |
| 17 September | 02:13:33 | Sun | enters Virgo |
| 23 September | 00:05:12 | Earth | autumnal equinox |
| 26 September | 16 h | Moon | full |
| 2 October | 13:33 | Venus | retrograde |
| 5 October | 05:21-07:31 | Moon, Mars | occultation (visible from Arctic Circle) |
| 6 October | 09:03-13:22 | Moon, Jupiter | occultation (visible from eastern North America) |
| 7 October | 09:09 | Mercury, Venus | conjunction (5° 3′) |
| 10 October | 15 h | Moon | new |
| 12 October | 10 h | Mercury | maximum elongation |
| 24 October | 11:50 | Mercury | retrograde |
| 24 October | 14:13 | Sun, Venus | inferior conjunction (6° 29′) |
| 26 October | 4 h | Moon | full |
| 31 October | 14:37:19 | Sun | enters Libra |
| 2 November | 12:27-15:15 | Moon, Mars | occultation (visible from Oceania) |
| 2 November | 21:31-01:32 | Moon, Jupiter | occultation (visible from southern Asia) |
| 4 November | 14:56 | Sun, Mercury | inferior conjunction (22′) |
| 7 November | 09:27-12:01 | Moon, Venus | occultation (visible from southern South America) |
| 9 November | 7 h | Moon | new |
| 11 November | 13:33 | Venus | prograde |
| 13 November | 09:12 | Mercury | prograde |
| 16 November | 02:04 | Mars, Jupiter | conjunction (1° 12′) |
| 21 November | 0 h | Mercury | maximum elongation |
| 23 November | 17:37:16 | Sun | enters Scorpius |
| 24 November | Mars | launch window (4.92 km/s Δv) | |
| 24 November | 15 h | Moon | full |
| 26 November | 1 h | Earth | transit (from Uranus) |
| 30 November | 05:36:39 | Sun | enters Ophiuchus |
| 30 November | 08:00-10:15 | Moon, Jupiter | occultation (visible from South America) |
| 9 December | 1 h | Moon | new |
| 10 December | 14:22 | Saturn, Neptune | conjunction (6° 25′) |
| 11 December | 22:59 | Saturn | prograde |
| 13 December | 08:53 | Neptune | prograde |
| 13 December | 10:54 | Jupiter | retrograde |
| 18 December | 13:03:38 | Sun | enters Sagittarius |
| 21 December | 20:50:14 | Earth | winter solstice |
| 24 December | 2 h | Moon | full (supermoon) |