Close approach of the Moon and Mars

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The Moon and Mars will make a close approach, passing within a mere 18.6 arcminutes of each other. From some parts of the world, the Moon will pass in front of Mars, creating a lunar occultation. The Moon will be 18 days old.

From Columbus , the pair will be visible in the morning sky, becoming accessible around 00:13, when they reach an altitude of 7° above your south-eastern horizon. They will then reach their highest point in the sky at 04:44, 36° above your southern horizon. They will be lost to dawn twilight around 05:56, 34° above your southern horizon.

The Moon will be at mag -12.4; and Mars will be at mag -1.9. Both objects will lie in the constellation Aquarius.

They 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.

At around the same time, the pair will also share the same right ascension – called a conjunction.

A graph of the angular separation between the Moon and Mars around the time of closest approach is available here.

The positions of the pair at the moment of closest approach will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 22h50m30s 12°46'S Aquarius -12.4 30'50"2
Mars 22h51m00s 13°03'S Aquarius -1.9 19"6

The coordinates above are given in J2000.0. The pair will be at an angular separation of 134° from the Sun, which is in Gemini at this time of year.

The sky on 17 Jul 2024

The sky on 17 July 2024
Sunrise
06:15
Sunset
20:58
Twilight ends
22:53
Twilight begins
04:18


Waxing Gibbous

88%

12 days old

Planets
Rise Culm. Set
Mercury 08:31 15:23 22:15
Venus 07:13 14:26 21:40
Moon 17:58 22:30 02:58
Mars 02:20 09:29 16:39
Jupiter 03:07 10:27 17:48
Saturn 23:29 05:11 10:53
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

19 Jul 2001  –  Mars ends retrograde motion
29 Jul 2003  –  Mars enters retrograde motion
27 Aug 2003  –  Mars at perigee
28 Aug 2003  –  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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