Conjunction of the Moon and Mercury

Dominic Ford, Editor
From the Conjunctions feed


The Moon and Mercury will share the same right ascension, with the Moon passing 2°45' to the north of Mercury. The Moon will be 1 days old.

From Jacksonville however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be no higher than 5° above the horizon at dusk.

The Moon will be at mag -7.9, and Mercury at mag -1.0, both in the constellation Gemini.

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 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 07h57m10s 25°22'N Gemini -7.9 32'22"6
Mercury 07h57m10s 22°36'N Gemini -1.0 5"2

The coordinates above are given in J2000.0. The pair will be at an angular separation of 12° from the Sun, which is in Gemini at this time of year.

The sky on 25 Jul 2024

The sky on 25 July 2024
Sunrise
06:38
Sunset
20:24
Twilight ends
21:56
Twilight begins
05:06


Waning Gibbous

68%

20 days old

Planets
Rise Culm. Set
Mercury 08:47 15:14 21:41
Venus 07:45 14:29 21:14
Moon 22:57 04:59 11:10
Mars 02:23 09:15 16:08
Jupiter 03:01 09:57 16:54
Saturn 22:46 04:33 10:21
All times shown in EDT.

Warning

Never attempt to point a pair of binoculars or a telescope at an object close to the Sun. Doing so may result in immediate and permanent blindness.

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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04 Aug 2043  –  Mercury at greatest elongation east
18 Sep 2043  –  Mercury at highest altitude in morning sky

Image credit

The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

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