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 13' to the north of Mars. The Moon will be 15 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 morning sky, becoming accessible around 17:32, when they reach an altitude of 7° above your north-eastern horizon. They will then reach their highest point in the sky at 00:19, 73° above your southern horizon. They will be lost to dawn twilight around 06:55, 9° above your north-western horizon.

The Moon will be at mag -12.7, and Mars at mag -1.4, both in the constellation Gemini.

The pair will be close enough to fit within the field of view of a telescope, but will also 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 07h58m10s 25°13'N Gemini -12.7 31'14"5
Mars 07h58m10s 25°00'N Gemini -1.4 14"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 174° from the Sun, which is in Sagittarius at this time of year.

The sky on 13 Jan 2025

The sky on 13 January 2025
Sunrise
07:14
Sunset
16:46
Twilight ends
18:24
Twilight begins
05:36


Waning Gibbous

99%

14 days old

Planets
Rise Culm. Set
Mercury 06:18 10:51 15:24
Venus 09:32 15:07 20:42
Moon 15:10 --:-- 07:26
Mars 16:40 00:20 07:59
Jupiter 13:34 20:59 04:23
Saturn 09:51 15:27 21:03
All times shown in EST.

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

12 Jan 2025  –  Mars at perigee
15 Jan 2025  –  Mars at opposition
23 Feb 2025  –  Mars ends retrograde motion
10 Jan 2027  –  Mars enters retrograde motion

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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