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°58' to the north of Mercury. The Moon will be 1 days old.

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 6° above the horizon at dusk.

The Moon will be at mag -8.7 in the constellation Aquarius, and Mercury at mag 0.5 in the neighbouring constellation of Capricornus.

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 21h15m40s 11°34'S Aquarius -8.7 33'12"4
Mercury 21h15m40s 14°33'S Capricornus 0.5 8"4

The coordinates above are given in J2000.0. The pair will be at an angular separation of 17° from the Sun, which is in Capricornus at this time of year.

The sky on 25 Nov 2024

The sky on 25 November 2024
Sunrise
06:45
Sunset
16:14
Twilight ends
17:54
Twilight begins
05:05


Waning Crescent

23%

24 days old

Planets
Rise Culm. Set
Mercury 08:26 12:49 17:13
Venus 10:11 14:34 18:58
Moon 01:14 07:25 13:26
Mars 20:30 03:57 11:23
Jupiter 17:01 00:31 08:02
Saturn 12:50 18:21 23:51
All times shown in EST.

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.

Related news

16 Jan 2015  –  Mercury at highest altitude in evening sky
16 Feb 2015  –  Mercury at highest altitude in morning sky
24 Feb 2015  –  Mercury at greatest elongation west
06 May 2015  –  Mercury at highest altitude in evening 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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