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 4°27' to the south of Mercury. The Moon will be 2 days old.

From Fairfield , the pair will be difficult to observe as they will appear no higher than 9° above the horizon. They will become visible at around 20:56 (EDT), 9° above your north-western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting 1 hour and 33 minutes after the Sun at 22:01.

The Moon will be at mag -9.1, and Mercury at mag -0.4, 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 07h05m00s 20°06'N Gemini -9.1 32'54"0
Mercury 07h05m00s 24°34'N Gemini -0.4 6"3

The coordinates above are given in J2000.0. The pair will be at an angular separation of 21° from the Sun, which is in Taurus at this time of year.

The sky on 29 Jun 2024

The sky on 29 June 2024
Sunrise
05:20
Sunset
20:29
Twilight ends
22:37
Twilight begins
03:12


Waning Crescent

36%

23 days old

Planets
Rise Culm. Set
Mercury 06:36 14:07 21:38
Venus 05:52 13:24 20:57
Moon 00:47 07:15 13:57
Mars 02:11 09:10 16:09
Jupiter 03:22 10:44 18:05
Saturn 00:02 05:44 11:25
All times shown in EDT.

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

16 Apr 1999  –  Mercury at greatest elongation west
22 Jun 1999  –  Mercury at highest altitude in evening sky
28 Jun 1999  –  Mercury at greatest elongation east
14 Aug 1999  –  Mercury at greatest elongation west

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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