Planets TonightNeptune in 2045: brightness, position and events
Brightest+7.7around Nov 1
Closest (in table)28.826 au4312 million km
Farthest30.816 au
Events this year2
Brightest last year+7.7
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 2045-05-04 23:27 | Conjunction with the Sun | +7.8 | 30.818 | Aries | 1.7° |
| 2045-11-08 02:03 | Opposition | +7.7 | 28.821 | 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 | 29.291 | Aries | 121° E | Evening sky |
| Jan 15 | +7.7 | 29.512 | Aries | 107° E | Evening sky |
| Feb 1 | +7.8 | 29.804 | Aries | 89° E | Evening sky |
| Feb 15 | +7.8 | 30.044 | Aries | 75° E | Evening sky |
| Mar 1 | +7.8 | 30.269 | Aries | 62° E | Evening sky |
| Mar 15 | +7.8 | 30.468 | Aries | 48° E | Evening sky |
| Apr 1 | +7.8 | 30.657 | Aries | 32° E | Evening sky |
| Apr 15 | +7.8 | 30.761 | Aries | 18° E | Evening sky |
| May 1 | +7.8 | 30.816 | Aries | 4° E | Too close to the Sun |
| May 15 | +7.8 | 30.806 | Aries | 10° W | Too close to the Sun |
| Jun 1 | +7.8 | 30.722 | Aries | 26° W | Morning sky |
| Jun 15 | +7.8 | 30.599 | Aries | 38° W | Morning sky |
| Jul 1 | +7.8 | 30.408 | Aries | 53° W | Morning sky |
| Jul 15 | +7.8 | 30.205 | Aries | 66° W | Morning sky |
| Aug 1 | +7.8 | 29.930 | Aries | 82° W | Morning sky |
| Aug 15 | +7.8 | 29.695 | Aries | 96° W | Morning sky |
| Sep 1 | +7.7 | 29.418 | Aries | 112° W | Morning sky |
| Sep 15 | +7.7 | 29.213 | Aries | 126° W | Morning sky |
| Oct 1 | +7.7 | 29.020 | Aries | 142° W | Morning sky |
| Oct 15 | +7.7 | 28.899 | Aries | 156° W | Most of the night |
| Nov 1 | +7.7 | 28.826 | Aries | 173° W | Most of the night |
| Nov 15 | +7.7 | 28.832 | Aries | 172° E | Most of the night |
| Dec 1 | +7.7 | 28.911 | Aries | 156° E | Most of the night |
| Dec 15 | +7.7 | 29.039 | Aries | 141° 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 November 2045 (magnitude +7.7); 2 conjunctions, oppositions or elongations occur this year.