Planets TonightNeptune in 1964: brightness, position and events
Brightest+7.9around Apr 15
Closest (in table)29.321 au4386 million km
Farthest31.308 au
Events this year2
Brightest last year+7.9
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1964-05-07 09:17 | Opposition | +7.8 | 29.315 | Libra | 178.2° |
| 1964-11-10 07:28 | Conjunction with the Sun | +8.0 | 31.313 | Libra | 1.7° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +8.0 | 30.912 | Libra | 53° W | Morning sky |
| Jan 15 | +8.0 | 30.703 | Libra | 66° W | Morning sky |
| Feb 1 | +7.9 | 30.419 | Libra | 84° W | Morning sky |
| Feb 15 | +7.9 | 30.177 | Libra | 98° W | Morning sky |
| Mar 1 | +7.9 | 29.927 | Libra | 113° W | Morning sky |
| Mar 15 | +7.9 | 29.716 | Libra | 127° W | Morning sky |
| Apr 1 | +7.9 | 29.509 | Libra | 144° W | Morning sky |
| Apr 15 | +7.9 | 29.391 | Libra | 158° W | Most of the night |
| May 1 | +7.9 | 29.321 | Libra | 174° W | Most of the night |
| May 15 | +7.9 | 29.323 | Libra | 172° E | Most of the night |
| Jun 1 | +7.9 | 29.401 | Libra | 155° E | Most of the night |
| Jun 15 | +7.9 | 29.523 | Libra | 141° E | Evening sky |
| Jul 1 | +7.9 | 29.716 | Libra | 126° E | Evening sky |
| Jul 15 | +7.9 | 29.921 | Libra | 112° E | Evening sky |
| Aug 1 | +nan | 30.197 | Libra | 96° E | Evening sky |
| Aug 15 | +7.9 | 30.433 | Libra | 83° E | Evening sky |
| Sep 1 | +8.0 | 30.708 | Libra | 67° E | Evening sky |
| Sep 15 | +8.0 | 30.912 | Libra | 53° E | Evening sky |
| Oct 1 | +8.0 | 31.103 | Libra | 38° E | Evening sky |
| Oct 15 | +8.0 | 31.225 | Libra | 25° E | Evening sky |
| Nov 1 | +8.0 | 31.304 | Libra | 9° E | Too close to the Sun |
| Nov 15 | +8.0 | 31.308 | Libra | 5° W | Too close to the Sun |
| Dec 1 | +8.0 | 31.243 | Libra | 21° W | Morning sky |
| Dec 15 | +8.0 | 31.130 | Libra | 34° W | Morning 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 April 1964 (magnitude +7.9); 2 conjunctions, oppositions or elongations occur this year.