Planets TonightMars in 1977: brightness, position and events
Brightest-0.6around Dec 15
Closest (in table)0.772 au115 million km
Farthest2.425 au
Events this year0
Brightest last year-1.4
Events this year
No conjunction, opposition or elongation this year.
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +1.3 | 2.425 | Sagittarius | 10° W | Too close to the Sun |
| Jan 15 | +1.3 | 2.385 | Sagittarius | 14° W | Too close to the Sun |
| Feb 1 | +1.3 | 2.332 | Sagittarius | 19° W | Morning sky |
| Feb 15 | +1.3 | 2.286 | Capricornus | 22° W | Morning sky |
| Mar 1 | +1.2 | 2.238 | Capricornus | 25° W | Morning sky |
| Mar 15 | +1.2 | 2.190 | Capricornus | 28° W | Morning sky |
| Apr 1 | +1.2 | 2.132 | Aquarius | 32° W | Morning sky |
| Apr 15 | +1.2 | 2.084 | Aquarius | 35° W | Morning sky |
| May 1 | +1.2 | 2.029 | Pisces | 38° W | Morning sky |
| May 15 | +1.1 | 1.981 | Pisces | 41° W | Morning sky |
| Jun 1 | +1.1 | 1.921 | Pisces | 44° W | Morning sky |
| Jun 15 | +1.1 | 1.870 | Aries | 47° W | Morning sky |
| Jul 1 | +1.1 | 1.808 | Aries | 51° W | Morning sky |
| Jul 15 | +1.0 | 1.749 | Taurus | 54° W | Morning sky |
| Aug 1 | +1.0 | 1.672 | Taurus | 59° W | Morning sky |
| Aug 15 | +0.9 | 1.601 | Taurus | 63° W | Morning sky |
| Sep 1 | +0.8 | 1.507 | Gemini | 68° W | Morning sky |
| Sep 15 | +0.7 | 1.421 | Gemini | 74° W | Morning sky |
| Oct 1 | +0.6 | 1.316 | Gemini | 80° W | Morning sky |
| Oct 15 | +0.5 | 1.216 | Gemini | 87° W | Morning sky |
| Nov 1 | +0.2 | 1.090 | Cancer | 96° W | Morning sky |
| Nov 15 | +0.0 | 0.983 | Cancer | 106° W | Morning sky |
| Dec 1 | -0.3 | 0.865 | Cancer | 118° W | Morning sky |
| Dec 15 | -0.6 | 0.772 | Cancer | 131° 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
Mars is brightest around December 1977 (magnitude -0.6); 0 conjunctions, oppositions or elongations occur this year.