Planets TonightNeptune in 2030: brightness, position and events
Brightest+7.7around Sep 15
Closest (in table)28.854 au4317 million km
Farthest30.853 au
Events this year2
Brightest last year+7.7
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 2030-03-31 20:38 | Conjunction with the Sun | +7.8 | 30.853 | Pisces | 1.5° |
| 2030-10-05 12:45 | Opposition | +7.7 | 28.853 | Pisces | 178.4° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +7.8 | 29.880 | Cetus | 88° E | Evening sky |
| Jan 15 | +7.8 | 30.119 | Cetus | 74° E | Evening sky |
| Feb 1 | +7.8 | 30.387 | Cetus | 57° E | Evening sky |
| Feb 15 | +7.8 | 30.572 | Cetus | 43° E | Evening sky |
| Mar 1 | +7.8 | 30.716 | Cetus | 29° E | Evening sky |
| Mar 15 | +7.8 | 30.811 | Cetus | 16° E | Evening sky |
| Apr 1 | +7.8 | 30.853 | Pisces | 2° W | Too close to the Sun |
| Apr 15 | +7.8 | 30.827 | Pisces | 14° W | Too close to the Sun |
| May 1 | +7.8 | 30.732 | Pisces | 29° W | Morning sky |
| May 15 | +7.8 | 30.598 | Pisces | 42° W | Morning sky |
| Jun 1 | +7.8 | 30.381 | Pisces | 58° W | Morning sky |
| Jun 15 | +7.8 | 30.169 | Pisces | 71° W | Morning sky |
| Jul 1 | +7.8 | 29.906 | Pisces | 86° W | Morning sky |
| Jul 15 | +7.8 | 29.672 | Pisces | 99° W | Morning sky |
| Aug 1 | +7.7 | 29.400 | Pisces | 116° W | Morning sky |
| Aug 15 | +7.7 | 29.203 | Pisces | 129° W | Morning sky |
| Sep 1 | +7.7 | 29.012 | Pisces | 146° W | Morning sky |
| Sep 15 | +7.7 | 28.907 | Pisces | 160° W | Most of the night |
| Oct 1 | +7.7 | 28.854 | Pisces | 176° W | Most of the night |
| Oct 15 | +7.7 | 28.871 | Pisces | 170° E | Most of the night |
| Nov 1 | +7.7 | 28.969 | Pisces | 152° E | Most of the night |
| Nov 15 | +7.7 | 29.108 | Pisces | 138° E | Evening sky |
| Dec 1 | +7.7 | 29.322 | Cetus | 122° E | Evening sky |
| Dec 15 | +7.7 | 29.542 | Cetus | 107° 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 2030 (magnitude +7.7); 2 conjunctions, oppositions or elongations occur this year.