Planets TonightNeptune in 2024: brightness, position and events
Brightest+7.7around Sep 15
Closest (in table)28.897 au4323 million km
Farthest30.895 au
Events this year2
Brightest last year+7.7
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 2024-03-17 20:22 | Conjunction with the Sun | +7.8 | 30.897 | Pisces | 1.2° |
| 2024-09-21 09:16 | Opposition | +7.7 | 28.893 | Pisces | 178.7° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +7.8 | 30.145 | Pisces | 75° E | Evening sky |
| Jan 15 | +7.8 | 30.369 | Pisces | 61° E | Evening sky |
| Feb 1 | +7.8 | 30.603 | Pisces | 44° E | Evening sky |
| Feb 15 | +7.8 | 30.751 | Pisces | 30° E | Evening sky |
| Mar 1 | +7.8 | 30.855 | Pisces | 16° E | Evening sky |
| Mar 15 | +7.8 | 30.895 | Pisces | 3° E | Too close to the Sun |
| Apr 1 | +7.8 | 30.870 | Pisces | 14° W | Too close to the Sun |
| Apr 15 | +7.8 | 30.789 | Pisces | 27° W | Morning sky |
| May 1 | +7.8 | 30.638 | Pisces | 42° W | Morning sky |
| May 15 | +7.8 | 30.462 | Pisces | 56° W | Morning sky |
| Jun 1 | +7.8 | 30.207 | Pisces | 72° W | Morning sky |
| Jun 15 | +7.8 | 29.977 | Pisces | 85° W | Morning sky |
| Jul 1 | +7.8 | 29.708 | Pisces | 100° W | Morning sky |
| Jul 15 | +7.7 | 29.483 | Pisces | 113° W | Morning sky |
| Aug 1 | +7.7 | 29.240 | Pisces | 130° W | Morning sky |
| Aug 15 | +7.7 | 29.079 | Pisces | 143° W | Morning sky |
| Sep 1 | +7.7 | 28.947 | Pisces | 160° W | Most of the night |
| Sep 15 | +7.7 | 28.897 | Pisces | 174° W | Most of the night |
| Oct 1 | +7.7 | 28.911 | Pisces | 170° E | Most of the night |
| Oct 15 | +7.7 | 28.986 | Pisces | 156° E | Most of the night |
| Nov 1 | +7.7 | 29.148 | Pisces | 138° E | Evening sky |
| Nov 15 | +7.7 | 29.331 | Pisces | 124° E | Evening sky |
| Dec 1 | +7.7 | 29.580 | Pisces | 108° E | Evening sky |
| Dec 15 | +7.8 | 29.818 | Pisces | 94° 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 2024 (magnitude +7.7); 2 conjunctions, oppositions or elongations occur this year.