Planets TonightNeptune in 1983: brightness, position and events
Brightest+7.8around Jun 1
Closest (in table)29.255 au4377 million km
Farthest31.243 au
Events this year2
Brightest last year+7.8
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1983-06-20 02:14 | Opposition | +7.8 | 29.252 | Sagittarius | 178.7° |
| 1983-12-21 18:40 | Conjunction with the Sun | +8.0 | 31.248 | Sagittarius | 1.2° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +8.0 | 31.227 | Sagittarius | 13° W | Too close to the Sun |
| Jan 15 | +8.0 | 31.146 | Sagittarius | 27° W | Morning sky |
| Feb 1 | +8.0 | 30.978 | Sagittarius | 43° W | Morning sky |
| Feb 15 | +7.9 | 30.793 | Sagittarius | 57° W | Morning sky |
| Mar 1 | +7.9 | 30.577 | Sagittarius | 71° W | Morning sky |
| Mar 15 | +7.9 | 30.343 | Sagittarius | 85° W | Morning sky |
| Apr 1 | +7.9 | 30.052 | Sagittarius | 102° W | Morning sky |
| Apr 15 | +7.9 | 29.824 | Sagittarius | 115° W | Morning sky |
| May 1 | +7.8 | 29.595 | Sagittarius | 131° W | Morning sky |
| May 15 | +7.8 | 29.435 | Sagittarius | 145° W | Morning sky |
| Jun 1 | +7.8 | 29.303 | Sagittarius | 162° W | Most of the night |
| Jun 15 | +7.8 | 29.255 | Sagittarius | 175° W | Most of the night |
| Jul 1 | +7.8 | 29.270 | Sagittarius | 169° E | Most of the night |
| Jul 15 | +7.8 | 29.342 | Sagittarius | 155° E | Most of the night |
| Aug 1 | +7.8 | 29.499 | Sagittarius | 138° E | Evening sky |
| Aug 15 | +7.9 | 29.676 | Sagittarius | 125° E | Evening sky |
| Sep 1 | +7.9 | 29.933 | Sagittarius | 108° E | Evening sky |
| Sep 15 | +nan | 30.166 | Sagittarius | 95° E | Evening sky |
| Oct 1 | +7.9 | 30.437 | Sagittarius | 79° E | Evening sky |
| Oct 15 | +7.9 | 30.663 | Sagittarius | 66° E | Evening sky |
| Nov 1 | +7.9 | 30.906 | Sagittarius | 49° E | Evening sky |
| Nov 15 | +8.0 | 31.065 | Sagittarius | 36° E | Evening sky |
| Dec 1 | +8.0 | 31.190 | Sagittarius | 20° E | Evening sky |
| Dec 15 | +8.0 | 31.243 | Sagittarius | 6° E | Too close to the Sun |
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 1983 (magnitude +7.8); 2 conjunctions, oppositions or elongations occur this year.