Planets TonightNeptune in 1989: brightness, position and events
Brightest+7.8around Jun 15
Closest (in table)29.199 au4368 million km
Farthest31.203 au
Events this year1
Brightest last year+7.8
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1989-07-03 07:43 | Opposition | +7.8 | 29.198 | Sagittarius | 179.1° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +7.9 | 31.203 | Sagittarius | 1° W | Too close to the Sun |
| Jan 15 | +7.9 | 31.170 | Sagittarius | 14° W | Too close to the Sun |
| Feb 1 | +7.9 | 31.057 | Sagittarius | 31° W | Morning sky |
| Feb 15 | +7.9 | 30.910 | Sagittarius | 45° W | Morning sky |
| Mar 1 | +7.9 | 30.722 | Sagittarius | 59° W | Morning sky |
| Mar 15 | +7.9 | 30.504 | Sagittarius | 72° W | Morning sky |
| Apr 1 | +7.9 | 30.218 | Sagittarius | 89° W | Morning sky |
| Apr 15 | +7.8 | 29.980 | Sagittarius | 103° W | Morning sky |
| May 1 | +7.8 | 29.724 | Sagittarius | 118° W | Morning sky |
| May 15 | +7.8 | 29.529 | Sagittarius | 132° W | Morning sky |
| Jun 1 | +7.8 | 29.344 | Sagittarius | 149° W | Morning sky |
| Jun 15 | +7.8 | 29.245 | Sagittarius | 162° W | Most of the night |
| Jul 1 | +7.8 | 29.199 | Sagittarius | 178° W | Most of the night |
| Jul 15 | +7.8 | 29.220 | Sagittarius | 168° E | Most of the night |
| Aug 1 | +7.8 | 29.319 | Sagittarius | 151° E | Most of the night |
| Aug 15 | +7.8 | 29.457 | Sagittarius | 138° E | Evening sky |
| Sep 1 | +7.8 | 29.681 | Sagittarius | 121° E | Evening sky |
| Sep 15 | +7.8 | 29.898 | Sagittarius | 107° E | Evening sky |
| Oct 1 | +7.9 | 30.166 | Sagittarius | 92° E | Evening sky |
| Oct 15 | +7.9 | 30.403 | Sagittarius | 78° E | Evening sky |
| Nov 1 | +7.9 | 30.675 | Sagittarius | 61° E | Evening sky |
| Nov 15 | +7.9 | 30.869 | Sagittarius | 48° E | Evening sky |
| Dec 1 | +7.9 | 31.043 | Sagittarius | 32° E | Evening sky |
| Dec 15 | +7.9 | 31.144 | Sagittarius | 18° 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 June 1989 (magnitude +7.8); 1 conjunctions, oppositions or elongations occur this year.