Planets TonightNeptune in 2043: brightness, position and events
Brightest+7.7around Oct 15
Closest (in table)28.816 au4311 million km
Farthest30.814 au
Events this year2
Brightest last year+7.7
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 2043-04-30 20:28 | Conjunction with the Sun | +7.8 | 30.814 | Aries | 1.7° |
| 2043-11-04 02:41 | Opposition | +7.7 | 28.816 | Aries | 178.2° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +7.7 | 29.347 | Aries | 117° E | Evening sky |
| Jan 15 | +7.7 | 29.575 | Aries | 103° E | Evening sky |
| Feb 1 | +7.8 | 29.868 | Aries | 86° E | Evening sky |
| Feb 15 | +7.8 | 30.106 | Aries | 72° E | Evening sky |
| Mar 1 | +7.8 | 30.325 | Aries | 58° E | Evening sky |
| Mar 15 | +7.8 | 30.514 | Aries | 44° E | Evening sky |
| Apr 1 | +7.8 | 30.687 | Aries | 28° E | Evening sky |
| Apr 15 | +7.8 | 30.777 | Aries | 14° E | Too close to the Sun |
| May 1 | +7.8 | 30.814 | Aries | 2° W | Too close to the Sun |
| May 15 | +7.8 | 30.788 | Aries | 14° W | Too close to the Sun |
| Jun 1 | +7.8 | 30.686 | Aries | 29° W | Morning sky |
| Jun 15 | +7.8 | 30.550 | Aries | 42° W | Morning sky |
| Jul 1 | +7.8 | 30.346 | Aries | 57° W | Morning sky |
| Jul 15 | +7.8 | 30.135 | Aries | 70° W | Morning sky |
| Aug 1 | +7.8 | 29.856 | Aries | 86° W | Morning sky |
| Aug 15 | +7.8 | 29.621 | Aries | 100° W | Morning sky |
| Sep 1 | +7.7 | 29.350 | Aries | 116° W | Morning sky |
| Sep 15 | +7.7 | 29.153 | Aries | 130° W | Morning sky |
| Oct 1 | +7.7 | 28.974 | Aries | 146° W | Morning sky |
| Oct 15 | +7.7 | 28.869 | Aries | 160° W | Most of the night |
| Nov 1 | +7.7 | 28.816 | Aries | 177° W | Most of the night |
| Nov 15 | +7.7 | 28.839 | Aries | 168° E | Most of the night |
| Dec 1 | +7.7 | 28.936 | Aries | 152° E | Most of the night |
| Dec 15 | +7.7 | 29.079 | Aries | 137° 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 October 2043 (magnitude +7.7); 2 conjunctions, oppositions or elongations occur this year.