Jupiter in 1990: brightness, position and events
Brightest-2.7around Jan 1
Closest (in table)4.171 au624 million km
Farthest6.238 au
Events this year1
Brightest last year-2.7
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1990-07-15 14:31 | Conjunction with the Sun | -1.8 | 6.238 | Gemini | 0.2° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | -2.7 | 4.171 | Gemini | 175° E | Most of the night |
| Jan 15 | -2.7 | 4.227 | Gemini | 159° E | Most of the night |
| Feb 1 | -2.6 | 4.371 | Gemini | 140° E | Evening sky |
| Feb 15 | -2.5 | 4.539 | Gemini | 125° E | Evening sky |
| Mar 1 | -2.4 | 4.740 | Gemini | 111° E | Evening sky |
| Mar 15 | -2.3 | 4.960 | Gemini | 97° E | Evening sky |
| Apr 1 | -2.2 | 5.234 | Gemini | 82° E | Evening sky |
| Apr 15 | -2.1 | 5.452 | Gemini | 70° E | Evening sky |
| May 1 | -2.0 | 5.683 | Gemini | 56° E | Evening sky |
| May 15 | -1.9 | 5.859 | Gemini | 45° E | Evening sky |
| Jun 1 | -1.9 | 6.033 | Gemini | 32° E | Evening sky |
| Jun 15 | -1.9 | 6.138 | Gemini | 22° E | Evening sky |
| Jul 1 | -1.8 | 6.214 | Gemini | 10° E | Too close to the Sun |
| Jul 15 | -1.8 | 6.238 | Gemini | 0° E | Too close to the Sun |
| Aug 1 | -1.8 | 6.215 | Gemini | 12° W | Too close to the Sun |
| Aug 15 | -1.9 | 6.152 | Cancer | 23° W | Morning sky |
| Sep 1 | -1.9 | 6.027 | Cancer | 36° W | Morning sky |
| Sep 15 | -1.9 | 5.886 | Cancer | 46° W | Morning sky |
| Oct 1 | -2.0 | 5.689 | Cancer | 59° W | Morning sky |
| Oct 15 | -2.0 | 5.491 | Cancer | 71° W | Morning sky |
| Nov 1 | -2.1 | 5.232 | Cancer | 86° W | Morning sky |
| Nov 15 | -2.2 | 5.015 | Cancer | 99° W | Morning sky |
| Dec 1 | -2.3 | 4.777 | Cancer | 115° W | Morning sky |
| Dec 15 | -2.4 | 4.593 | Cancer | 130° 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 January 1990 (magnitude -2.7); 1 conjunctions, oppositions or elongations occur this year.