Neptune in 1979: brightness, position and events
Brightest+7.8around Jun 1
Closest (in table)29.270 au4379 million km
Farthest31.264 au
Events this year2
Brightest last year+7.8
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1979-06-10 23:33 | Opposition | +7.8 | 29.267 | Ophiuchus | 178.5° |
| 1979-12-13 05:20 | Conjunction with the Sun | +8.0 | 31.265 | 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 | 31.198 | Ophiuchus | 21° W | Morning sky |
| Jan 15 | +8.0 | 31.083 | Ophiuchus | 35° W | Morning sky |
| Feb 1 | +8.0 | 30.882 | Ophiuchus | 52° W | Morning sky |
| Feb 15 | +8.0 | 30.676 | Ophiuchus | 66° W | Morning sky |
| Mar 1 | +7.9 | 30.447 | Ophiuchus | 80° W | Morning sky |
| Mar 15 | +7.9 | 30.207 | Ophiuchus | 94° W | Morning sky |
| Apr 1 | +7.9 | 29.921 | Ophiuchus | 110° W | Morning sky |
| Apr 15 | +7.9 | 29.707 | Ophiuchus | 124° W | Morning sky |
| May 1 | +7.9 | 29.503 | Ophiuchus | 140° W | Morning sky |
| May 15 | +7.9 | 29.372 | Ophiuchus | 154° W | Most of the night |
| Jun 1 | +7.8 | 29.281 | Ophiuchus | 171° W | Most of the night |
| Jun 15 | +7.8 | 29.270 | Ophiuchus | 175° E | Most of the night |
| Jul 1 | +7.8 | 29.326 | Ophiuchus | 160° E | Most of the night |
| Jul 15 | +7.9 | 29.432 | Ophiuchus | 146° E | Evening sky |
| Aug 1 | +7.9 | 29.624 | Ophiuchus | 130° E | Evening sky |
| Aug 15 | +7.9 | 29.823 | Ophiuchus | 116° E | Evening sky |
| Sep 1 | +7.9 | 30.097 | Ophiuchus | 100° E | Evening sky |
| Sep 15 | +nan | 30.333 | Ophiuchus | 86° E | Evening sky |
| Oct 1 | +7.9 | 30.598 | Ophiuchus | 71° E | Evening sky |
| Oct 15 | +8.0 | 30.811 | Ophiuchus | 57° E | Evening sky |
| Nov 1 | +8.0 | 31.027 | Ophiuchus | 41° E | Evening sky |
| Nov 15 | +8.0 | 31.158 | Ophiuchus | 27° E | Evening sky |
| Dec 1 | +8.0 | 31.246 | Ophiuchus | 12° E | Too close to the Sun |
| Dec 15 | +8.0 | 31.264 | Ophiuchus | 3° 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 1979 (magnitude +7.8); 2 conjunctions, oppositions or elongations occur this year.