Planet Events 2026
Oppositions and greatest elongations in 2026: 11 events, all in UTC. Jupiter, Neptune, Saturn, Uranus reach opposition; Mercury and Venus reach greatest elongation.
| Date (UTC) | Planet | Event | Details | Mag | Constellation |
|---|---|---|---|---|---|
| Jan 10, 2026 | Jupiter | Opposition | 4.23 AU | −2.7 | Gemini |
| Feb 19, 2026 | Mercury | Greatest elongation | 18.1° · evening | −0.6 | Aquarius |
| Apr 3, 2026 | Mercury | Greatest elongation | 27.8° · morning | +0.2 | Aquarius |
| Jun 15, 2026 | Mercury | Greatest elongation | 24.5° · evening | +0.4 | Gemini |
| Aug 2, 2026 | Mercury | Greatest elongation | 19.5° · morning | +0.1 | Gemini |
| Aug 15, 2026 | Venus | Greatest elongation | 45.9° · evening | −4.5 | Virgo |
| Sep 26, 2026 | Neptune | Opposition | 28.88 AU | +7.8 | Pisces |
| Oct 4, 2026 | Saturn | Opposition | 8.43 AU | +0.2 | Cetus |
| Oct 12, 2026 | Mercury | Greatest elongation | 25.2° · evening | −0.1 | Libra |
| Nov 20, 2026 | Mercury | Greatest elongation | 19.6° · morning | −0.6 | Libra |
| Nov 25, 2026 | Uranus | Opposition | 18.44 AU | +5.6 | Taurus |
Oppositions and greatest elongations are computed with astronomy-engine, a high-precision ephemeris. Distance, magnitude and constellation are for each event's exact moment. All dates and times are UTC.