The Moon and Mars will share the same right ascension, with the Moon passing 1°51' to the south of Mars. The Moon will be 15 days old.
At around the same time, the two objects will also make a close approach, technically called an appulse.
From Fairfield , the pair will be visible between 20:19 and 04:56. They will become accessible at around 20:19, when they rise to an altitude of 7° above your south-eastern horizon. They will reach their highest point in the sky at 00:38, 33° above your southern horizon. They will become inaccessible at around 04:56 when they sink below 7° above your south-western horizon.
The Moon will be at mag -12.7, and Mars at mag -1.8, both in the constellation Libra.
The pair will be too widely separated to fit within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.
A graph of the angular separation between the Moon and Mars around the time of closest approach is available here.
The positions of the two objects at the moment of conjunction will be as follows:
| Object | Right Ascension | Declination | Constellation | Magnitude | Angular Size |
| The Moon | 14h40m40s | 17°01'S | Libra | -12.7 | 32'32"8 |
| Mars | 14h40m40s | 15°10'S | Libra | -1.8 | 16"8 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 176° from the Sun, which is in Aries at this time of year.
The sky on 6 May 2031
| The sky on 6 May 2031 | ||||||||||||||||||||||||||||||||||
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99% 15 days old |
All times shown in EDT.
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Source
The circumstances of this event were computed using the DE430 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).
This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.
Related news
| 04 May 2031 | – Mars at opposition |
| 11 May 2031 | – Mars at perigee |
| 13 Jun 2031 | – Mars ends retrograde motion |
| 26 May 2033 | – Mars enters retrograde motion |
Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.