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 7°02' to the north of Mars. The Moon will be 19 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 00:28, when they reach an altitude of 7° above your south-eastern horizon. They will then reach their highest point in the sky at 03:58, 24° above your southern horizon. They will be lost to dawn twilight around 05:09, 22° above your southern horizon.

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The Moon will be at mag -12.5, and Mars at mag -1.3, both in the constellation Sagittarius.

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 18h51m00s 17°45'S Sagittarius -12.5 31'09"2
Mars 18h51m00s 24°48'S Sagittarius -1.3 15"8

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

The sky on 18 May 2033

The sky on 18 May 2033
Sunrise
05:29
Sunset
20:06
Twilight ends
22:02
Twilight begins
03:33

19-day old moon
Waning Gibbous

81%

19 days old

Planets
Rise Culm. Set
Mercury 06:06 13:40 21:13
Venus 03:37 09:53 16:09
Moon 23:04 04:04 09:06
Mars 23:30 03:58 08:27
Jupiter 02:09 07:34 12:59
Saturn 07:56 15:26 22:55
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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26 May 2033  –  Mars enters retrograde motion
27 Jun 2033  –  Mars at opposition
05 Jul 2033  –  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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