Jupiter in 1980: brightness, position and events
Brightest-2.5around Mar 1
Closest (in table)4.407 au659 million km
Farthest6.435 au
Events this year2
Brightest last year-2.6
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1980-02-25 03:01 | Opposition | -2.5 | 4.402 | Leo | 178.7° |
| 1980-09-13 18:55 | Conjunction with the Sun | -1.7 | 6.436 | Leo | 1.0° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | -2.3 | 4.824 | Leo | 120° W | Morning sky |
| Jan 15 | -2.4 | 4.647 | Leo | 134° W | Morning sky |
| Feb 1 | -2.5 | 4.489 | Leo | 153° W | Most of the night |
| Feb 15 | -2.5 | 4.417 | Leo | 169° W | Most of the night |
| Mar 1 | -2.5 | 4.407 | Leo | 174° E | Most of the night |
| Mar 15 | -2.5 | 4.461 | Leo | 158° E | Most of the night |
| Apr 1 | -2.4 | 4.600 | Leo | 140° E | Evening sky |
| Apr 15 | -2.3 | 4.763 | Leo | 125° E | Evening sky |
| May 1 | -2.2 | 4.988 | Leo | 109° E | Evening sky |
| May 15 | -2.1 | 5.203 | Leo | 96° E | Evening sky |
| Jun 1 | -2.0 | 5.472 | Leo | 81° E | Evening sky |
| Jun 15 | -1.9 | 5.685 | Leo | 70° E | Evening sky |
| Jul 1 | -1.8 | 5.910 | Leo | 57° E | Evening sky |
| Jul 15 | -1.8 | 6.082 | Leo | 46° E | Evening sky |
| Aug 1 | -1.7 | 6.250 | Leo | 33° E | Evening sky |
| Aug 15 | -1.7 | 6.351 | Leo | 22° E | Evening sky |
| Sep 1 | -1.7 | 6.421 | Leo | 9° E | Too close to the Sun |
| Sep 15 | -1.7 | 6.435 | Leo | 2° W | Too close to the Sun |
| Oct 1 | -1.7 | 6.401 | Virgo | 14° W | Too close to the Sun |
| Oct 15 | -1.7 | 6.327 | Virgo | 24° W | Morning sky |
| Nov 1 | -1.7 | 6.185 | Virgo | 38° W | Morning sky |
| Nov 15 | -1.8 | 6.029 | Virgo | 49° W | Morning sky |
| Dec 1 | -1.9 | 5.816 | Virgo | 63° W | Morning sky |
| Dec 15 | -1.9 | 5.606 | Virgo | 75° 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 March 1980 (magnitude -2.5); 2 conjunctions, oppositions or elongations occur this year.