Neptune at opposition
Sky · Planets · Tue, September 23, 2025 · Computed (rule)
Neptune is opposite the Sun: up all night and at its brightest for the year.
Every year
| Date | Event | When |
|---|---|---|
| Tue, Sep 19, 2023 | Neptune at opposition | 3 yr ago |
| Fri, Sep 20, 2024 | Neptune at opposition | 2 yr ago |
| Tue, Sep 23, 2025 | Neptune at opposition | 12 mo ago |
| Fri, Sep 25, 2026 | Neptune at opposition | Tomorrow |
| Tue, Sep 28, 2027 | Neptune at opposition | in 12 mo |
| Fri, Sep 29, 2028 | Neptune at opposition | in 2 yr |
Also on Sep 23, 2025
| Date | Event | When |
|---|---|---|
| Tue, Sep 23, 2025 | Rosh Hashanah | 12 mo ago |
| Tue, Sep 23, 2025 | UN General Assembly general debate 2025 | 12 mo ago |
Source, method and history
- Source
- Astronomy Engine
- How we know
- Relative longitude search with Astronomy Engine.
- Recurs
- about yearly
- Feed
- Subscribe to Planets
- Changes
- None recorded.
Sources: official schedules and published calendars, linked on every event; computed dates name their rule. Refreshed nightly.