The Moon and Mercury will make a close approach, passing within 1°47' of each other. The Moon will be 28 days old.
From Fairfield however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be no higher than 2° above the horizon at dawn.
The Moon will be at mag -9.4; and Mercury will be at mag 0.4. Both objects will lie in the constellation Pisces.
They 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.
At around the same time, the pair will also share the same right ascension – called a conjunction.
A graph of the angular separation between the Moon and Mercury around the time of closest approach is available here.
The positions of the pair at the moment of closest approach will be as follows:
| Object | Right Ascension | Declination | Constellation | Magnitude | Angular Size |
| The Moon | 01h44m00s | 5°23'N | Pisces | -9.4 | 30'02"5 |
| Mercury | 01h41m30s | 7°04'N | Pisces | 0.4 | 8"1 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 26° from the Sun, which is in Aries at this time of year.
The sky on 7 Jul 2024
| The sky on 7 July 2024 | ||||||||||||||||||||||||||||||||||
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3% 2 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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| 18 May 2037 | – Mercury at highest altitude in morning sky |
| 15 Jul 2037 | – Mercury at highest altitude in evening sky |
| 25 Jul 2037 | – Mercury at greatest elongation east |
Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.