Planets TonightJupiter in 1979: brightness, position and events
Brightest-2.6around Jan 15
Closest (in table)4.303 au644 million km
Farthest6.354 au
Events this year2
Brightest last year-2.7
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1979-01-25 00:17 | Opposition | -2.6 | 4.292 | Cancer | 179.4° |
| 1979-08-13 18:11 | Conjunction with the Sun | -1.7 | 6.354 | Leo | 0.7° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | -2.6 | 4.373 | Cancer | 153° W | Most of the night |
| Jan 15 | -2.6 | 4.304 | Cancer | 169° W | Most of the night |
| Feb 1 | -2.6 | 4.303 | Cancer | 171° E | Most of the night |
| Feb 15 | -2.6 | 4.369 | Cancer | 156° E | Most of the night |
| Mar 1 | -2.5 | 4.491 | Cancer | 140° E | Evening sky |
| Mar 15 | -2.4 | 4.657 | Cancer | 125° E | Evening sky |
| Apr 1 | -2.3 | 4.900 | Cancer | 108° E | Evening sky |
| Apr 15 | -2.2 | 5.120 | Cancer | 95° E | Evening sky |
| May 1 | -2.0 | 5.376 | Cancer | 81° E | Evening sky |
| May 15 | -2.0 | 5.592 | Cancer | 69° E | Evening sky |
| Jun 1 | -1.9 | 5.832 | Cancer | 55° E | Evening sky |
| Jun 15 | -1.8 | 6.003 | Cancer | 44° E | Evening sky |
| Jul 1 | -1.8 | 6.162 | Cancer | 32° E | Evening sky |
| Jul 15 | -1.8 | 6.264 | Cancer | 22° E | Evening sky |
| Aug 1 | -1.8 | 6.337 | Cancer | 9° E | Too close to the Sun |
| Aug 15 | -1.7 | 6.354 | Leo | 2° W | Too close to the Sun |
| Sep 1 | -1.8 | 6.320 | Leo | 14° W | Too close to the Sun |
| Sep 15 | -1.8 | 6.248 | Leo | 25° W | Morning sky |
| Oct 1 | -1.8 | 6.120 | Leo | 37° W | Morning sky |
| Oct 15 | -1.8 | 5.971 | Leo | 48° W | Morning sky |
| Nov 1 | -1.9 | 5.751 | Leo | 62° W | Morning sky |
| Nov 15 | -2.0 | 5.546 | Leo | 74° W | Morning sky |
| Dec 1 | -2.1 | 5.295 | Leo | 89° W | Morning sky |
| Dec 15 | -2.2 | 5.075 | Leo | 102° 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 1979 (magnitude -2.6); 2 conjunctions, oppositions or elongations occur this year.