Close approach of the Moon and Mercury

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The Moon and Mercury will make a close approach, passing within 1°18' of each other. The Moon will be 3 days old.

From South El Monte 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 -9.4; and Mercury will be at mag 0.2. Both objects will lie in the constellation Virgo.

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 12h08m10s 5°09'S Virgo -9.4 29'23"4
Mercury 12h09m50s 3°55'S Virgo 0.2 7"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 27° from the Sun, which is in Leo at this time of year.

The sky on 13 Apr 2026

The sky on 13 April 2026
Sunrise
06:21
Sunset
19:21
Twilight ends
20:49
Twilight begins
04:54


Waning Crescent

13%

26 days old

Planets
Rise Culm. Set
Mercury 05:26 11:20 17:14
Venus 07:31 14:21 21:12
Moon 04:14 09:48 15:30
Mars 05:32 11:35 17:39
Jupiter 11:25 18:34 01:43
Saturn 05:47 11:52 17:57
All times shown in PDT.

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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08 Oct 2068  –  Mercury at greatest elongation west
21 Dec 2068  –  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.

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