Planets TonightNeptune in 1980: brightness, position and events
Brightest+7.8around Jun 15
Closest (in table)29.265 au4378 million km
Farthest31.261 au
Events this year2
Brightest last year+7.8
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1980-06-12 12:10 | Opposition | +7.8 | 29.264 | Ophiuchus | 178.6° |
| 1980-12-14 14:26 | Conjunction with the Sun | +8.0 | 31.262 | Ophiuchus | 1.3° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +8.0 | 31.209 | Ophiuchus | 19° W | Morning sky |
| Jan 15 | +8.0 | 31.103 | Ophiuchus | 33° W | Morning sky |
| Feb 1 | +8.0 | 30.911 | Ophiuchus | 50° W | Morning sky |
| Feb 15 | +8.0 | 30.711 | Ophiuchus | 63° W | Morning sky |
| Mar 1 | +7.9 | 30.468 | Ophiuchus | 78° W | Morning sky |
| Mar 15 | +7.9 | 30.228 | Ophiuchus | 92° W | Morning sky |
| Apr 1 | +7.9 | 29.942 | Ophiuchus | 109° W | Morning sky |
| Apr 15 | +7.9 | 29.725 | Ophiuchus | 123° W | Morning sky |
| May 1 | +7.9 | 29.517 | Ophiuchus | 139° W | Morning sky |
| May 15 | +7.8 | 29.380 | Ophiuchus | 152° W | Most of the night |
| Jun 1 | +7.8 | 29.283 | Ophiuchus | 169° W | Most of the night |
| Jun 15 | +7.8 | 29.265 | Ophiuchus | 177° E | Most of the night |
| Jul 1 | +7.8 | 29.314 | Ophiuchus | 161° E | Most of the night |
| Jul 15 | +7.9 | 29.415 | Ophiuchus | 148° E | Evening sky |
| Aug 1 | +7.9 | 29.602 | Ophiuchus | 131° E | Evening sky |
| Aug 15 | +7.9 | 29.797 | Ophiuchus | 118° E | Evening sky |
| Sep 1 | +7.9 | 30.069 | Ophiuchus | 101° E | Evening sky |
| Sep 15 | +nan | 30.305 | Ophiuchus | 88° E | Evening sky |
| Oct 1 | +7.9 | 30.572 | Ophiuchus | 72° E | Evening sky |
| Oct 15 | +8.0 | 30.787 | Ophiuchus | 58° E | Evening sky |
| Nov 1 | +8.0 | 31.008 | Ophiuchus | 42° E | Evening sky |
| Nov 15 | +8.0 | 31.144 | Ophiuchus | 28° E | Evening sky |
| Dec 1 | +8.0 | 31.238 | Ophiuchus | 13° E | Too close to the Sun |
| Dec 15 | +8.0 | 31.261 | Ophiuchus | 2° W | 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 1980 (magnitude +7.8); 2 conjunctions, oppositions or elongations occur this year.