The Moon and Mars will share the same right ascension, with the Moon passing 1°58' to the south of Mars. The Moon will be 27 days old.
At around the same time, the two objects will also make a close approach, technically called an appulse.
From Cambridge however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be no higher than 4° above the horizon at dawn.
The Moon will be at mag -10.3, and Mars at mag 1.2, both in the constellation Aquarius.
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 | 22h50m30s | 10°40'S | Aquarius | -10.3 | 33'04"8 |
| Mars | 22h50m30s | 8°42'S | Aquarius | 1.2 | 4"5 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 36° from the Sun, which is in Pisces at this time of year.
The sky on 5 Apr 2024
| The sky on 5 April 2024 | ||||||||||||||||||||||||||||||||||
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6% 26 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.
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| 06 Dec 2024 | – Mars enters retrograde motion |
| 12 Jan 2025 | – Mars at perigee |
| 15 Jan 2025 | – Mars at opposition |
Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.