Planets TonightNeptune in 2020: brightness, position and events
Brightest+7.7around Aug 15
Closest (in table)28.925 au4327 million km
Farthest30.920 au
Events this year2
Brightest last year+7.7
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 2020-03-08 21:23 | Conjunction with the Sun | +7.8 | 30.924 | Aquarius | 1.0° |
| 2020-09-12 05:25 | Opposition | +7.7 | 28.922 | Aquarius | 178.9° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +7.8 | 30.317 | Aquarius | 66° E | Evening sky |
| Jan 15 | +7.8 | 30.526 | Aquarius | 52° E | Evening sky |
| Feb 1 | +7.8 | 30.730 | Aquarius | 35° E | Evening sky |
| Feb 15 | +7.8 | 30.847 | Aquarius | 22° E | Evening sky |
| Mar 1 | +7.8 | 30.915 | Aquarius | 7° E | Too close to the Sun |
| Mar 15 | +7.8 | 30.920 | Aquarius | 6° W | Too close to the Sun |
| Apr 1 | +7.8 | 30.852 | Aquarius | 23° W | Morning sky |
| Apr 15 | +7.8 | 30.738 | Aquarius | 36° W | Morning sky |
| May 1 | +7.8 | 30.555 | Aquarius | 51° W | Morning sky |
| May 15 | +7.8 | 30.357 | Aquarius | 64° W | Morning sky |
| Jun 1 | +7.8 | 30.085 | Aquarius | 80° W | Morning sky |
| Jun 15 | +7.8 | 29.850 | Aquarius | 94° W | Morning sky |
| Jul 1 | +7.7 | 29.587 | Aquarius | 109° W | Morning sky |
| Jul 15 | +7.7 | 29.375 | Aquarius | 122° W | Morning sky |
| Aug 1 | +7.7 | 29.159 | Aquarius | 139° W | Morning sky |
| Aug 15 | +7.7 | 29.027 | Aquarius | 152° W | Most of the night |
| Sep 1 | +7.7 | 28.937 | Aquarius | 169° W | Most of the night |
| Sep 15 | +7.7 | 28.925 | Aquarius | 176° E | Most of the night |
| Oct 1 | +7.7 | 28.982 | Aquarius | 161° E | Most of the night |
| Oct 15 | +7.7 | 29.092 | Aquarius | 146° E | Evening sky |
| Nov 1 | +7.7 | 29.291 | Aquarius | 129° E | Evening sky |
| Nov 15 | +7.7 | 29.496 | Aquarius | 115° E | Evening sky |
| Dec 1 | +7.8 | 29.761 | Aquarius | 99° E | Evening sky |
| Dec 15 | +7.8 | 30.003 | Aquarius | 85° 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 August 2020 (magnitude +7.7); 2 conjunctions, oppositions or elongations occur this year.