Planets TonightMercury in 1964: brightness, position and events
Brightest-1.9around Mar 15
Closest (in table)0.562 au84 million km
Farthest1.414 au
Events this year13
Brightest last year-2.1
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 1964-01-04 23:17 | Inferior conjunction | +5.6 | 0.672 | Sagittarius | 2.7° |
| 1964-01-27 08:37 | Greatest western elongation (morning) | -0.0 | 1.003 | Sagittarius | 24.7° |
| 1964-03-13 16:56 | Superior conjunction | -1.9 | 1.356 | Aquarius | 1.5° |
| 1964-04-08 03:03 | Greatest eastern elongation (evening) | +0.1 | 0.879 | Aries | 19.3° |
| 1964-04-27 19:10 | Inferior conjunction | +7.0 | 0.567 | Aries | 1.0° |
| 1964-05-25 05:17 | Greatest western elongation (morning) | +0.5 | 0.819 | Aries | 25.2° |
| 1964-06-27 16:24 | Superior conjunction | -2.3 | 1.326 | Gemini | 1.2° |
| 1964-08-06 04:21 | Greatest eastern elongation (evening) | +0.4 | 0.885 | Sextans | 27.4° |
| 1964-09-02 16:02 | Inferior conjunction | +5.5 | 0.632 | Sextans | 3.9° |
| 1964-09-18 21:09 | Greatest western elongation (morning) | -0.4 | 0.945 | Leo | 17.9° |
| 1964-10-16 03:43 | Superior conjunction | -1.6 | 1.417 | Virgo | 0.9° |
| 1964-11-30 19:11 | Greatest eastern elongation (evening) | -0.4 | 1.014 | Sagittarius | 21.5° |
| 1964-12-19 05:35 | Inferior conjunction | +5.8 | 0.677 | Sagittarius | 2.0° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +3.1 | 0.698 | Sagittarius | 8° E | Too close to the Sun |
| Jan 15 | +0.5 | 0.781 | Sagittarius | 20° W | Morning sky |
| Feb 1 | -0.1 | 1.088 | Sagittarius | 24° W | Morning sky |
| Feb 15 | -0.3 | 1.264 | Capricornus | 19° W | Morning sky |
| Mar 1 | -0.8 | 1.363 | Aquarius | 10° W | Too close to the Sun |
| Mar 15 | -1.9 | 1.345 | Pisces | 2° E | Too close to the Sun |
| Apr 1 | -0.7 | 1.052 | Pisces | 17° E | Evening sky |
| Apr 15 | +1.4 | 0.711 | Aries | 16° E | Evening sky |
| May 1 | +5.2 | 0.562 | Aries | 6° W | Too close to the Sun |
| May 15 | +1.3 | 0.672 | Pisces | 22° W | Morning sky |
| Jun 1 | +0.1 | 0.949 | Aries | 24° W | Morning sky |
| Jun 15 | -1.1 | 1.207 | Taurus | 14° W | Too close to the Sun |
| Jul 1 | -1.7 | 1.323 | Gemini | 5° E | Too close to the Sun |
| Jul 15 | -0.5 | 1.194 | Cancer | 18° E | Evening sky |
| Aug 1 | +0.3 | 0.954 | Leo | 27° E | Evening sky |
| Aug 15 | +0.7 | 0.754 | Leo | 25° E | Evening sky |
| Sep 1 | +5.2 | 0.627 | Sextans | 5° E | Too close to the Sun |
| Sep 15 | +0.1 | 0.851 | Leo | 17° W | Morning sky |
| Oct 1 | -1.2 | 1.257 | Virgo | 12° W | Too close to the Sun |
| Oct 15 | -1.6 | 1.414 | Virgo | 1° W | Too close to the Sun |
| Nov 1 | -0.6 | 1.409 | Libra | 10° E | Too close to the Sun |
| Nov 15 | -0.5 | 1.284 | Ophiuchus | 17° E | Evening sky |
| Dec 1 | -0.3 | 0.999 | Sagittarius | 22° E | Evening sky |
| Dec 15 | +2.8 | 0.701 | Sagittarius | 9° E | Too close to the Sun |
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 March 1964 (magnitude -1.9); 13 conjunctions, oppositions or elongations occur this year.