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°45' to the south of Mercury. The Moon will be 29 days old.

From Columbus , the pair will be visible in the dawn sky, rising at 05:31 (EDT) – 1 hour and 22 minutes before the Sun – and reaching an altitude of 10° above the eastern horizon before fading from view as dawn breaks at around 06:35.

The Moon will be at mag -8.5, and Mercury at mag -0.9, both in the constellation Cancer.

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 09h20m00s 11°28'N Cancer -8.5 33'22"6
Mercury 09h20m00s 16°13'N Cancer -0.9 6"2

The coordinates above are given in J2000.0. The pair will be at an angular separation of 15° from the Sun, which is in Leo at this time of year.

The sky on 6 Oct 2024

The sky on 6 October 2024
Sunrise
07:31
Sunset
19:05
Twilight ends
20:35
Twilight begins
06:00


Waxing Crescent

18%

4 days old

Planets
Rise Culm. Set
Mercury 07:53 13:35 19:17
Venus 10:19 15:22 20:25
Moon 11:20 16:06 20:46
Mars 00:18 07:45 15:11
Jupiter 22:26 05:50 13:15
Saturn 17:55 23:30 05:04
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.

Related news

22 Aug 1992  –  Mercury at highest altitude in morning sky
31 Oct 1992  –  Mercury at greatest elongation east
03 Nov 1992  –  Mercury at highest altitude in evening sky
07 Dec 1992  –  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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