Planets TonightJupiter in 1981: brightness, position and events
Brightest-2.5around Apr 1
Closest (in table)4.457 au667 million km
Farthest6.449 au
Events this year2
Brightest last year-2.5
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1981-03-26 14:53 | Opposition | -2.5 | 4.452 | Virgo | 178.4° |
| 1981-10-14 13:45 | Conjunction with the Sun | -1.7 | 6.449 | Virgo | 1.1° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | -2.0 | 5.335 | Virgo | 91° W | Morning sky |
| Jan 15 | -2.1 | 5.112 | Virgo | 105° W | Morning sky |
| Feb 1 | -2.2 | 4.861 | Virgo | 122° W | Morning sky |
| Feb 15 | -2.3 | 4.686 | Virgo | 137° W | Morning sky |
| Mar 1 | -2.4 | 4.554 | Virgo | 152° W | Most of the night |
| Mar 15 | -2.5 | 4.474 | Virgo | 167° W | Most of the night |
| Apr 1 | -2.5 | 4.457 | Virgo | 173° E | Most of the night |
| Apr 15 | -2.4 | 4.508 | Virgo | 158° E | Most of the night |
| May 1 | -2.4 | 4.633 | Virgo | 141° E | Evening sky |
| May 15 | -2.3 | 4.790 | Virgo | 126° E | Evening sky |
| Jun 1 | -2.1 | 5.023 | Virgo | 110° E | Evening sky |
| Jun 15 | -2.1 | 5.235 | Virgo | 97° E | Evening sky |
| Jul 1 | -1.9 | 5.484 | Virgo | 83° E | Evening sky |
| Jul 15 | -1.9 | 5.696 | Virgo | 71° E | Evening sky |
| Aug 1 | -1.8 | 5.933 | Virgo | 57° E | Evening sky |
| Aug 15 | -1.8 | 6.104 | Virgo | 46° E | Evening sky |
| Sep 1 | -1.7 | 6.270 | Virgo | 33° E | Evening sky |
| Sep 15 | -1.7 | 6.369 | Virgo | 22° E | Evening sky |
| Oct 1 | -1.7 | 6.435 | Virgo | 10° E | Too close to the Sun |
| Oct 15 | -1.7 | 6.449 | Virgo | 1° W | Too close to the Sun |
| Nov 1 | -1.7 | 6.409 | Virgo | 14° W | Too close to the Sun |
| Nov 15 | -1.7 | 6.330 | Virgo | 25° W | Morning sky |
| Dec 1 | -1.7 | 6.192 | Virgo | 38° W | Morning sky |
| Dec 15 | -1.8 | 6.034 | Virgo | 50° 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
Jupiter is brightest around April 1981 (magnitude -2.5); 2 conjunctions, oppositions or elongations occur this year.