Planets TonightNeptune in 1975: brightness, position and events
Brightest+7.8around May 15
Closest (in table)29.287 au4381 million km
Farthest31.282 au
Events this year2
Brightest last year+7.8
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1975-06-01 22:03 | Opposition | +7.8 | 29.287 | Ophiuchus | 178.4° |
| 1975-12-04 16:20 | Conjunction with the Sun | +8.0 | 31.283 | Ophiuchus | 1.5° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +8.0 | 31.153 | Ophiuchus | 30° W | Morning sky |
| Jan 15 | +8.0 | 31.009 | Ophiuchus | 44° W | Morning sky |
| Feb 1 | +8.0 | 30.778 | Ophiuchus | 60° W | Morning sky |
| Feb 15 | +7.9 | 30.556 | Ophiuchus | 74° W | Morning sky |
| Mar 1 | +7.9 | 30.318 | Ophiuchus | 88° W | Morning sky |
| Mar 15 | +7.9 | 30.077 | Ophiuchus | 102° W | Morning sky |
| Apr 1 | +7.9 | 29.804 | Ophiuchus | 119° W | Morning sky |
| Apr 15 | +7.9 | 29.608 | Ophiuchus | 133° W | Morning sky |
| May 1 | +7.9 | 29.434 | Ophiuchus | 149° W | Morning sky |
| May 15 | +7.8 | 29.334 | Ophiuchus | 163° W | Most of the night |
| Jun 1 | +7.8 | 29.287 | Ophiuchus | 178° W | Most of the night |
| Jun 15 | +7.8 | 29.311 | Ophiuchus | 166° E | Most of the night |
| Jul 1 | +7.9 | 29.407 | Ophiuchus | 151° E | Most of the night |
| Jul 15 | +7.9 | 29.545 | Ophiuchus | 137° E | Evening sky |
| Aug 1 | +7.9 | 29.766 | Ophiuchus | 121° E | Evening sky |
| Aug 15 | +7.9 | 29.982 | Ophiuchus | 107° E | Evening sky |
| Sep 1 | +nan | 30.265 | Ophiuchus | 91° E | Evening sky |
| Sep 15 | +7.9 | 30.500 | Ophiuchus | 78° E | Evening sky |
| Oct 1 | +8.0 | 30.753 | Ophiuchus | 62° E | Evening sky |
| Oct 15 | +8.0 | 30.947 | Ophiuchus | 49° E | Evening sky |
| Nov 1 | +8.0 | 31.132 | Ophiuchus | 32° E | Evening sky |
| Nov 15 | +8.0 | 31.233 | Ophiuchus | 19° E | Evening sky |
| Dec 1 | +8.0 | 31.282 | Ophiuchus | 3° E | Too close to the Sun |
| Dec 15 | +8.0 | 31.264 | Ophiuchus | 11° 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 May 1975 (magnitude +7.8); 2 conjunctions, oppositions or elongations occur this year.