Planets TonightJupiter in 1999: brightness, position and events
Brightest-2.9around Oct 15
Closest (in table)3.971 au594 million km
Farthest5.950 au
Events this year2
Brightest last year-2.9
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1999-04-01 15:10 | Conjunction with the Sun | -2.0 | 5.950 | Pisces | 1.1° |
| 1999-10-24 04:03 | Opposition | -2.9 | 3.963 | Pisces | 178.5° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | -2.3 | 5.176 | Aquarius | 72° E | Evening sky |
| Jan 15 | -2.2 | 5.378 | Aquarius | 60° E | Evening sky |
| Feb 1 | -2.1 | 5.592 | Pisces | 46° E | Evening sky |
| Feb 15 | -2.1 | 5.735 | Pisces | 34° E | Evening sky |
| Mar 1 | -2.1 | 5.844 | Pisces | 24° E | Evening sky |
| Mar 15 | -2.1 | 5.916 | Cetus | 13° E | Too close to the Sun |
| Apr 1 | -2.0 | 5.950 | Pisces | 1° E | Too close to the Sun |
| Apr 15 | -2.1 | 5.934 | Pisces | 10° W | Too close to the Sun |
| May 1 | -2.1 | 5.869 | Pisces | 22° W | Morning sky |
| May 15 | -2.1 | 5.773 | Pisces | 32° W | Morning sky |
| Jun 1 | -2.1 | 5.612 | Pisces | 45° W | Morning sky |
| Jun 15 | -2.2 | 5.448 | Pisces | 56° W | Morning sky |
| Jul 1 | -2.3 | 5.233 | Pisces | 68° W | Morning sky |
| Jul 15 | -2.3 | 5.028 | Aries | 80° W | Morning sky |
| Aug 1 | -2.5 | 4.770 | Aries | 94° W | Morning sky |
| Aug 15 | -2.6 | 4.560 | Aries | 107° W | Morning sky |
| Sep 1 | -2.7 | 4.327 | Aries | 123° W | Morning sky |
| Sep 15 | -2.8 | 4.165 | Aries | 138° W | Morning sky |
| Oct 1 | -2.9 | 4.032 | Aries | 155° W | Most of the night |
| Oct 15 | -2.9 | 3.971 | Pisces | 170° W | Most of the night |
| Nov 1 | -2.9 | 3.977 | Pisces | 170° E | Most of the night |
| Nov 15 | -2.9 | 4.047 | Pisces | 155° E | Most of the night |
| Dec 1 | -2.8 | 4.193 | Pisces | 137° E | Evening sky |
| Dec 15 | -2.7 | 4.366 | Pisces | 122° 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 October 1999 (magnitude -2.9); 2 conjunctions, oppositions or elongations occur this year.