The Moon and Mercury will share the same right ascension, with the Moon passing 17' to the south of Mercury. 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 Jacksonville , the pair will be difficult to observe as they will appear no higher than 10° above the horizon. They will be visible in the dawn sky, rising at 05:31 (EDT) – 1 hour and 23 minutes before the Sun – and reaching an altitude of 10° above the south-eastern horizon before fading from view as dawn breaks at around 06:29.
The Moon will be at mag -9.5, and Mercury at mag 0.1, both in the constellation Capricornus.
The pair will be close enough to fit within the field of view of a telescope, but will also be visible to the naked eye or through a pair of binoculars.
A graph of the angular separation between the Moon and Mercury 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 | 20h40m40s | 18°01'S | Capricornus | -9.5 | 31'03"1 |
| Mercury | 20h40m40s | 17°43'S | Capricornus | 0.1 | 7"5 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 26° from the Sun, which is in Aquarius at this time of year.
The sky on 23 Jul 2024
| The sky on 23 July 2024 | ||||||||||||||||||||||||||||||||||
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91% 18 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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| 10 May 2074 | – 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.