Planets TonightMars in 2004: brightness, position and events
Brightest+0.2around Jan 1
Closest (in table)1.112 au166 million km
Farthest2.666 au
Events this year1
Brightest last year-2.9
Events this year
| Date (JST) | Event | Mag | Dist (au) | Constellation | Elong. |
|---|---|---|---|---|---|
| 2004-09-15 21:54 | Conjunction with the Sun | +1.6 | 2.664 | Leo | 1.0° |
Magnitude through the year (lower = brighter)
Twice-monthly position and visibility
| Date | Mag | Dist (au) | Constellation | Elong. | Visibility |
|---|---|---|---|---|---|
| Jan 1 | +0.2 | 1.112 | Pisces | 89° E | Evening sky |
| Jan 15 | +0.4 | 1.238 | Pisces | 84° E | Evening sky |
| Feb 1 | +0.7 | 1.394 | Pisces | 77° E | Evening sky |
| Feb 15 | +0.9 | 1.523 | Aries | 72° E | Evening sky |
| Mar 1 | +1.1 | 1.660 | Aries | 66° E | Evening sky |
| Mar 15 | +1.2 | 1.785 | Taurus | 61° E | Evening sky |
| Apr 1 | +1.4 | 1.931 | Taurus | 55° E | Evening sky |
| Apr 15 | +1.5 | 2.045 | Taurus | 50° E | Evening sky |
| May 1 | +1.6 | 2.167 | Taurus | 45° E | Evening sky |
| May 15 | +1.7 | 2.265 | Gemini | 40° E | Evening sky |
| Jun 1 | +1.8 | 2.372 | Gemini | 35° E | Evening sky |
| Jun 15 | +1.8 | 2.449 | Gemini | 30° E | Evening sky |
| Jul 1 | +1.8 | 2.524 | Cancer | 25° E | Evening sky |
| Jul 15 | +1.8 | 2.577 | Cancer | 20° E | Evening sky |
| Aug 1 | +1.8 | 2.626 | Leo | 15° E | Evening sky |
| Aug 15 | +1.8 | 2.652 | Leo | 10° E | Too close to the Sun |
| Sep 1 | +1.7 | 2.666 | Leo | 5° E | Too close to the Sun |
| Sep 15 | +1.6 | 2.664 | Leo | 1° E | Too close to the Sun |
| Oct 1 | +1.7 | 2.646 | Virgo | 5° W | Too close to the Sun |
| Oct 15 | +1.7 | 2.616 | Virgo | 10° W | Too close to the Sun |
| Nov 1 | +1.7 | 2.564 | Virgo | 16° W | Morning sky |
| Nov 15 | +1.7 | 2.508 | Virgo | 20° W | Morning sky |
| Dec 1 | +1.7 | 2.431 | Libra | 26° W | Morning sky |
| Dec 15 | +1.6 | 2.354 | Libra | 31° 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 January 2004 (magnitude +0.2); 1 conjunctions, oppositions or elongations occur this year.