The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

Conjunction of the Moon and Mars

Dominic Ford, Editor
From the Conjunctions feed

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The sky at

The Moon and Mars will share the same right ascension, with the Moon passing 2°04' to the north of Mars. The Moon will be 6 days old.

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

From Cambridge , the pair will become visible at around 20:29 (EST), 57° above your south-western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting at 01:57.

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The Moon will be at mag -11.7, and Mars at mag 1.0, 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 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 08h38m00s 22°34'N Cancer -11.7 31'02"8
Mars 08h38m00s 20°29'N Cancer 1.0 6"4

The coordinates above are given in J2000.0. The pair will be at an angular separation of 82° from the Sun, which is in Aries at this time of year.

The sky on 3 May 2025

The sky on 3 May 2025
Sunrise
05:34
Sunset
19:45
Twilight ends
21:37
Twilight begins
03:43

6-day old moon
Waxing Crescent

48%

6 days old

Planets
Rise Culm. Set
Mercury 04:50 11:11 17:32
Venus 03:54 10:01 16:08
Moon 10:45 18:32 02:06
Mars 11:10 18:33 01:57
Jupiter 07:45 15:19 22:54
Saturn 03:59 09:52 15:45
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

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

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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Cambridge

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42.38°N
71.11°W
EST

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