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 8.0 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 25 days old.

From Cambridge , the pair will be difficult to observe as they will appear no higher than 13° above the horizon. They will be visible in the dawn sky, rising at 03:13 (EDT) – 2 hours and 5 minutes before the Sun – and reaching an altitude of 13° above the eastern horizon before fading from view as dawn breaks at around 04:32.

The Moon will be at mag -10.8; and Mars will be at mag 1.0. Both objects will lie in the constellation Cetus.

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 00h30m50s 1°55'N Cetus -10.8 30'38"0
Mars 00h31m00s 1°47'N Cetus 1.0 5"3

The coordinates above are given in J2000.0. The pair will be at an angular separation of 52° from the Sun, which is in Taurus at this time of year.

The sky on 15 Aug 2024

The sky on 15 August 2024
Sunrise
05:49
Sunset
19:44
Twilight ends
21:32
Twilight begins
04:01


Waxing Gibbous

87%

11 days old

Planets
Rise Culm. Set
Mercury 06:34 13:04 19:34
Venus 07:30 14:03 20:37
Moon 17:11 21:22 01:33
Mars 00:38 08:10 15:42
Jupiter 00:38 08:08 15:38
Saturn 20:47 02:24 08:02
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

20 Dec 1958  –  Mars ends retrograde motion
20 Nov 1960  –  Mars enters retrograde motion
25 Dec 1960  –  Mars at perigee
30 Dec 1960  –  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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