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 5°01' to the north of Mars. The Moon will be 25 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 01:15 (EDT) and reaching an altitude of 40° above the eastern horizon before fading from view as dawn breaks at around 05:01.

The Moon will be at mag -11.2, and Mars at mag 0.9, both in the constellation Taurus.

The pair will be too widely separated to fit within the field of view of a telescope or pair of binoculars, but will be visible to the naked eye.

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 04h17m50s 25°46'N Taurus -11.2 31'26"8
Mars 04h17m50s 20°44'N Taurus 0.9 5"8

The coordinates above are given in J2000.0. The pair will be at an angular separation of 60° from the Sun, which is in Cancer at this time of year.

The sky on 30 Jul 2024

The sky on 30 July 2024
Sunrise
05:44
Sunset
20:11
Twilight ends
22:03
Twilight begins
03:51


Waning Crescent

20%

25 days old

Planets
Rise Culm. Set
Mercury 07:59 14:31 21:03
Venus 07:02 14:00 20:59
Moon 00:46 08:40 16:44
Mars 01:16 08:36 15:57
Jupiter 01:43 09:08 16:33
Saturn 21:59 03:39 09:19
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.

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12 Jan 2025  –  Mars at perigee
15 Jan 2025  –  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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