Planets TonightJupiter in 1998: brightness, position and events
Brightest-2.9around Sep 15
Closest (in table)3.963 au593 million km
Farthest5.993 au
Events this year2
Brightest last year-2.8
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1998-02-23 17:50 | Conjunction with the Sun | -2.0 | 5.997 | Aquarius | 0.9° |
| 1998-09-16 12:01 | Opposition | -2.9 | 3.963 | Aquarius | 178.4° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | -2.1 | 5.711 | Capricornus | 42° E | Evening sky |
| Jan 15 | -2.0 | 5.839 | Capricornus | 31° E | Evening sky |
| Feb 1 | -2.0 | 5.946 | Aquarius | 17° E | Evening sky |
| Feb 15 | -2.0 | 5.990 | Aquarius | 6° E | Too close to the Sun |
| Mar 1 | -2.0 | 5.993 | Aquarius | 4° W | Too close to the Sun |
| Mar 15 | -2.0 | 5.956 | Aquarius | 15° W | Morning sky |
| Apr 1 | -2.0 | 5.859 | Aquarius | 28° W | Morning sky |
| Apr 15 | -2.1 | 5.740 | Aquarius | 39° W | Morning sky |
| May 1 | -2.1 | 5.565 | Aquarius | 51° W | Morning sky |
| May 15 | -2.2 | 5.384 | Aquarius | 62° W | Morning sky |
| Jun 1 | -2.3 | 5.138 | Pisces | 76° W | Morning sky |
| Jun 15 | -2.4 | 4.924 | Pisces | 88° W | Morning sky |
| Jul 1 | -2.5 | 4.677 | Pisces | 102° W | Morning sky |
| Jul 15 | -2.6 | 4.471 | Pisces | 114° W | Morning sky |
| Aug 1 | -2.7 | 4.251 | Pisces | 131° W | Morning sky |
| Aug 15 | -2.8 | 4.107 | Pisces | 145° W | Morning sky |
| Sep 1 | -2.9 | 3.995 | Aquarius | 163° W | Most of the night |
| Sep 15 | -2.9 | 3.963 | Aquarius | 178° W | Most of the night |
| Oct 1 | -2.9 | 3.999 | Aquarius | 163° E | Most of the night |
| Oct 15 | -2.8 | 4.090 | Aquarius | 148° E | Evening sky |
| Nov 1 | -2.7 | 4.267 | Aquarius | 130° E | Evening sky |
| Nov 15 | -2.6 | 4.452 | Aquarius | 116° E | Evening sky |
| Dec 1 | -2.5 | 4.692 | Aquarius | 100° E | Evening sky |
| Dec 15 | -2.4 | 4.912 | Aquarius | 87° E | Evening 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 September 1998 (magnitude -2.9); 2 conjunctions, oppositions or elongations occur this year.