Conjunction of the Moon and Mars

Dominic Ford, Editor
From the Conjunctions feed


The Moon and Mars will share the same right ascension, with the Moon passing 1°03' to the south of Mars. The Moon will be 22 days old.

At around the same time, the two objects will also make a close approach, technically called an appulse.

From Fairfield , the pair will be visible in the dawn sky, rising at 02:25 (EDT) – 3 hours and 7 minutes before the Sun – and reaching an altitude of 23° above the south-eastern horizon before fading from view as dawn breaks at around 04:57.

The Moon will be at mag -11.6, and Mars at mag 0.3, both in the constellation Aquarius.

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 Mars 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 22h10m00s 14°22'S Aquarius -11.6 29'35"1
Mars 22h10m00s 13°18'S Aquarius 0.3 8"0

The coordinates above are given in J2000.0. The pair will be at an angular separation of 81° from the Sun, which is in Aries at this time of year.

The sky on 23 Jul 2024

The sky on 23 July 2024
Sunrise
05:37
Sunset
20:17
Twilight ends
22:14
Twilight begins
03:40


Waning Gibbous

91%

18 days old

Planets
Rise Culm. Set
Mercury 08:00 14:43 21:25
Venus 06:45 13:54 21:03
Moon 21:35 02:43 08:00
Mars 01:27 08:44 16:01
Jupiter 02:06 09:30 16:54
Saturn 22:27 04:08 09:48
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

31 Aug 2097  –  Mars ends retrograde motion
13 Sep 2099  –  Mars enters retrograde motion
10 Oct 2099  –  Mars at perigee
18 Oct 2099  –  Mars at opposition

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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