Planets TonightMercury in 2031: brightness, position and events
Brightest-1.5around Jun 15
Closest (in table)0.613 au92 million km
Farthest1.410 au
Events this year13
Brightest last year-1.7
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 2031-01-05 04:56 | Greatest western elongation (morning) | -0.2 | 1.015 | Ophiuchus | 22.9° |
| 2031-02-20 22:36 | Superior conjunction | -1.7 | 1.380 | Aquarius | 1.9° |
| 2031-03-18 21:06 | Greatest eastern elongation (evening) | -0.2 | 0.906 | Pisces | 18.5° |
| 2031-04-05 05:01 | Inferior conjunction | +6.2 | 0.593 | Pisces | 2.7° |
| 2031-05-03 05:31 | Greatest western elongation (morning) | +0.5 | 0.836 | Pisces | 26.9° |
| 2031-06-09 03:49 | Superior conjunction | -2.4 | 1.322 | Taurus | 0.8° |
| 2031-07-15 16:24 | Greatest eastern elongation (evening) | +0.5 | 0.846 | Leo | 26.6° |
| 2031-08-12 13:04 | Inferior conjunction | +5.4 | 0.607 | Cancer | 4.7° |
| 2031-08-30 02:35 | Greatest western elongation (morning) | -0.2 | 0.919 | Cancer | 18.2° |
| 2031-09-24 10:27 | Superior conjunction | -1.7 | 1.391 | Virgo | 1.5° |
| 2031-11-10 00:06 | Greatest eastern elongation (evening) | -0.2 | 1.019 | Ophiuchus | 23.1° |
| 2031-11-30 11:42 | Inferior conjunction | +6.4 | 0.678 | Scorpius | 1.0° |
| 2031-12-18 19:25 | Greatest western elongation (morning) | -0.3 | 1.014 | Scorpius | 21.5° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | -0.1 | 0.939 | Ophiuchus | 22° W | Morning sky |
| Jan 15 | -0.3 | 1.192 | Sagittarius | 21° W | Morning sky |
| Feb 1 | -0.5 | 1.363 | Sagittarius | 13° W | Too close to the Sun |
| Feb 15 | -1.2 | 1.398 | Capricornus | 5° W | Too close to the Sun |
| Mar 1 | -1.5 | 1.301 | Aquarius | 8° E | Too close to the Sun |
| Mar 15 | -0.6 | 0.999 | Pisces | 18° E | Evening sky |
| Apr 1 | +4.3 | 0.624 | Pisces | 7° E | Too close to the Sun |
| Apr 15 | +2.2 | 0.613 | Pisces | 17° W | Morning sky |
| May 1 | +0.5 | 0.810 | Pisces | 27° W | Morning sky |
| May 15 | -0.1 | 1.034 | Pisces | 24° W | Morning sky |
| Jun 1 | -1.4 | 1.282 | Taurus | 9° W | Too close to the Sun |
| Jun 15 | -1.5 | 1.294 | Gemini | 8° E | Too close to the Sun |
| Jul 1 | -0.2 | 1.073 | Cancer | 22° E | Evening sky |
| Jul 15 | +0.5 | 0.849 | Leo | 27° E | Evening sky |
| Aug 1 | +1.9 | 0.635 | Leo | 18° E | Evening sky |
| Aug 15 | +4.5 | 0.628 | Cancer | 7° W | Too close to the Sun |
| Sep 1 | -0.5 | 0.985 | Leo | 18° W | Morning sky |
| Sep 15 | -1.4 | 1.302 | Leo | 8° W | Too close to the Sun |
| Oct 1 | -1.1 | 1.410 | Virgo | 6° E | Too close to the Sun |
| Oct 15 | -0.5 | 1.361 | Virgo | 14° E | Too close to the Sun |
| Nov 1 | -0.3 | 1.170 | Libra | 22° E | Evening sky |
| Nov 15 | -0.1 | 0.904 | Scorpius | 22° E | Evening sky |
| Dec 1 | +5.4 | 0.681 | Scorpius | 3° W | Too close to the Sun |
| Dec 15 | -0.2 | 0.939 | Libra | 21° 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
Mercury is brightest around June 2031 (magnitude -1.5); 13 conjunctions, oppositions or elongations occur this year.