Planets TonightNeptune in 2026: brightness, position and events
Brightest+7.7around Sep 15
Closest (in table)28.881 au4321 million km
Farthest30.869 au
Events this year2
Brightest last year+7.7
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 2026-03-22 20:18 | Conjunction with the Sun | +7.8 | 30.879 | Pisces | 1.3° |
| 2026-09-26 10:36 | Opposition | +7.7 | 28.876 | Pisces | 178.6° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +7.8 | 30.060 | Pisces | 79° E | Evening sky |
| Jan 15 | +7.8 | 30.290 | Pisces | 65° E | Evening sky |
| Feb 1 | +7.8 | 30.536 | Pisces | 48° E | Evening sky |
| Feb 15 | +7.8 | 30.696 | Pisces | 34° E | Evening sky |
| Mar 1 | +7.8 | 30.809 | Pisces | 21° E | Evening sky |
| Mar 15 | +7.8 | 30.869 | Pisces | 7° E | Too close to the Sun |
| Apr 1 | +7.8 | 30.868 | Pisces | 9° W | Too close to the Sun |
| Apr 15 | +7.8 | 30.807 | Pisces | 22° W | Morning sky |
| May 1 | +7.8 | 30.674 | Pisces | 38° W | Morning sky |
| May 15 | +7.8 | 30.512 | Pisces | 51° W | Morning sky |
| Jun 1 | +7.8 | 30.269 | Pisces | 67° W | Morning sky |
| Jun 15 | +7.8 | 30.044 | Pisces | 80° W | Morning sky |
| Jul 1 | +7.8 | 29.776 | Pisces | 95° W | Morning sky |
| Jul 15 | +7.7 | 29.546 | Pisces | 108° W | Morning sky |
| Aug 1 | +7.7 | 29.291 | Pisces | 125° W | Morning sky |
| Aug 15 | +7.7 | 29.116 | Pisces | 138° W | Morning sky |
| Sep 1 | +7.7 | 28.961 | Pisces | 155° W | Most of the night |
| Sep 15 | +7.7 | 28.891 | Pisces | 169° W | Most of the night |
| Oct 1 | +7.7 | 28.881 | Pisces | 175° E | Most of the night |
| Oct 15 | +7.7 | 28.935 | Pisces | 161° E | Most of the night |
| Nov 1 | +7.7 | 29.075 | Pisces | 143° E | Evening sky |
| Nov 15 | +7.7 | 29.244 | Pisces | 129° E | Evening sky |
| Dec 1 | +7.7 | 29.482 | Pisces | 113° E | Evening sky |
| Dec 15 | +7.7 | 29.715 | Pisces | 98° E | Evening sky |
Computed with the JPL DE421 ephemeris and Skyfield (times in JST). Magnitude and distance are for 12:00 JST on each date. Visibility is a rough guide for mid-northern latitudes such as Japan.
About this page
Neptune is brightest around September 2026 (magnitude +7.7); 2 conjunctions, oppositions or elongations occur this year.