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 3°47' to the north of Mars. The Moon will be 4 days old.

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

From Columbus , the pair will become visible at around 22:00 (EST), 20° above your western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting 2 hours and 51 minutes after the Sun at 23:55.

The Moon will be at mag -10.5, and Mars at mag 1.7, both in the constellation Leo.

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 09h26m30s 20°11'N Leo -10.5 29'27"9
Mars 09h26m30s 16°24'N Leo 1.7 4"3

The coordinates above are given in J2000.0. The pair will be at an angular separation of 47° from the Sun, which is in Gemini at this time of year.

The sky on 22 Jun 2023

The sky on 22 June 2023
Sunrise
06:01
Sunset
21:04
Twilight ends
23:07
Twilight begins
03:57


Waxing Crescent

19%

4 days old

Planets
Rise Culm. Set
Mercury 05:21 12:47 20:14
Venus 09:33 16:38 23:44
Moon 09:59 17:16 00:24
Mars 09:55 16:55 23:56
Jupiter 03:04 09:51 16:39
Saturn 00:40 06:07 11:34
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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