Uranus in 1981: brightness, position and events
Brightest+5.5around May 1
Closest (in table)17.804 au2663 million km
Farthest19.826 au
Events this year2
Brightest last year+5.4
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1981-05-19 13:22 | Opposition | +5.5 | 17.802 | Libra | 179.8° |
| 1981-11-23 03:49 | Conjunction with the Sun | +5.7 | 19.834 | Libra | 0.2° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +5.7 | 19.506 | Libra | 42° W | Morning sky |
| Jan 15 | +5.6 | 19.326 | Libra | 56° W | Morning sky |
| Feb 1 | +5.6 | 19.067 | Libra | 72° W | Morning sky |
| Feb 15 | +5.6 | 18.833 | Libra | 86° W | Morning sky |
| Mar 1 | +5.5 | 18.596 | Libra | 100° W | Morning sky |
| Mar 15 | +5.5 | 18.369 | Libra | 114° W | Morning sky |
| Apr 1 | +5.5 | 18.128 | Libra | 132° W | Morning sky |
| Apr 15 | +5.5 | 17.970 | Libra | 146° W | Morning sky |
| May 1 | +5.5 | 17.850 | Libra | 162° W | Most of the night |
| May 15 | +5.5 | 17.804 | Libra | 176° W | Most of the night |
| Jun 1 | +5.5 | 17.826 | Libra | 167° E | Most of the night |
| Jun 15 | +5.5 | 17.907 | Libra | 153° E | Most of the night |
| Jul 1 | +5.5 | 18.061 | Libra | 137° E | Evening sky |
| Jul 15 | +5.5 | 18.241 | Libra | 124° E | Evening sky |
| Aug 1 | +5.5 | 18.500 | Libra | 107° E | Evening sky |
| Aug 15 | +5.6 | 18.733 | Libra | 94° E | Evening sky |
| Sep 1 | +5.6 | 19.020 | Libra | 78° E | Evening sky |
| Sep 15 | +5.6 | 19.244 | Libra | 65° E | Evening sky |
| Oct 1 | +5.7 | 19.471 | Libra | 50° E | Evening sky |
| Oct 15 | +5.7 | 19.633 | Libra | 36° E | Evening sky |
| Nov 1 | +5.7 | 19.770 | Libra | 20° E | Evening sky |
| Nov 15 | +5.7 | 19.826 | Libra | 7° E | Too close to the Sun |
| Dec 1 | +5.7 | 19.824 | Libra | 8° W | Too close to the Sun |
| Dec 15 | +5.7 | 19.764 | Scorpius | 21° 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
Uranus is brightest around May 1981 (magnitude +5.5); 2 conjunctions, oppositions or elongations occur this year.