Planets TonightNeptune in 2019: brightness, position and events
Brightest+7.7around Aug 15
Closest (in table)28.932 au4328 million km
Farthest30.923 au
Events this year2
Brightest last year+7.7
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 2019-03-07 09:59 | Conjunction with the Sun | +7.8 | 30.930 | Aquarius | 1.0° |
| 2019-09-10 16:23 | Opposition | +7.7 | 28.928 | 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 | 30.361 | Aquarius | 64° E | Evening sky |
| Jan 15 | +7.8 | 30.564 | Aquarius | 50° E | Evening sky |
| Feb 1 | +7.8 | 30.760 | Aquarius | 33° E | Evening sky |
| Feb 15 | +7.8 | 30.868 | Aquarius | 19° E | Evening sky |
| Mar 1 | +7.8 | 30.923 | Aquarius | 6° E | Too close to the Sun |
| Mar 15 | +7.8 | 30.922 | Aquarius | 8° W | Too close to the Sun |
| Apr 1 | +7.8 | 30.847 | Aquarius | 24° W | Morning sky |
| Apr 15 | +7.8 | 30.729 | Aquarius | 37° W | Morning sky |
| May 1 | +7.8 | 30.540 | Aquarius | 52° W | Morning sky |
| May 15 | +7.8 | 30.339 | Aquarius | 66° W | Morning sky |
| Jun 1 | +7.8 | 30.065 | Aquarius | 82° W | Morning sky |
| Jun 15 | +7.8 | 29.829 | Aquarius | 95° W | Morning sky |
| Jul 1 | +7.7 | 29.567 | Aquarius | 110° W | Morning sky |
| Jul 15 | +7.7 | 29.358 | Aquarius | 124° W | Morning sky |
| Aug 1 | +7.7 | 29.147 | Aquarius | 140° W | Morning sky |
| Aug 15 | +7.7 | 29.021 | Aquarius | 154° W | Most of the night |
| Sep 1 | +7.7 | 28.938 | Aquarius | 171° W | Most of the night |
| Sep 15 | +7.7 | 28.932 | Aquarius | 175° E | Most of the night |
| Oct 1 | +7.7 | 28.997 | Aquarius | 159° E | Most of the night |
| Oct 15 | +7.7 | 29.112 | Aquarius | 145° E | Evening sky |
| Nov 1 | +7.7 | 29.316 | Aquarius | 128° E | Evening sky |
| Nov 15 | +7.7 | 29.525 | Aquarius | 114° E | Evening sky |
| Dec 1 | +7.8 | 29.792 | Aquarius | 97° E | Evening sky |
| Dec 15 | +7.8 | 30.034 | Aquarius | 83° 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 2019 (magnitude +7.7); 2 conjunctions, oppositions or elongations occur this year.