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 3°56' to the north of Mercury. The Moon will be 28 days old.

From South El Monte , the pair will be difficult to observe as they will appear no higher than 9° above the horizon. They will be visible in the dawn sky, rising at 04:24 (PDT) – 1 hour and 16 minutes before the Sun – and reaching an altitude of 9° above the eastern horizon before fading from view as dawn breaks at around 05:16.

The Moon will be at mag -8.6, and Mercury at mag -0.5, both in the constellation Taurus.

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 04h58m30s 24°50'N Taurus -8.6 29'27"9
Mercury 04h58m30s 20°54'N Taurus -0.5 6"4

The coordinates above are given in J2000.0. The pair will be at an angular separation of 19° from the Sun, which is in Gemini at this time of year.

The sky on 27 Jun 2022

The sky on 27 June 2022
Sunrise
05:40
Sunset
20:07
Twilight ends
21:52
Twilight begins
03:55


Waning Crescent

1%

28 days old

Planets
Rise Culm. Set
Mercury 04:26 11:30 18:33
Venus 03:44 10:43 17:42
Moon 04:25 11:49 19:17
Mars 01:38 08:02 14:26
Jupiter 00:49 06:56 13:03
Saturn 22:56 04:18 09:41
All times shown in PDT.

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

22 Jun 2022  –  Mercury at highest altitude in morning sky
17 Aug 2022  –  Mercury at highest altitude in evening sky
27 Aug 2022  –  Mercury at greatest elongation east
08 Oct 2022  –  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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