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 1°05' 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 24 days old.

From Cambridge , the pair will be visible in the dawn sky, rising at 00:50 (EST) and reaching an altitude of 54° above the south-eastern horizon before fading from view as dawn breaks at around 06:03.

The Moon will be at mag -11.5; and Mars will be at mag 1.1. Both objects will lie in the constellation Cancer.

They 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.

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 08h26m50s 21°23'N Cancer -11.5 32'04"5
Mars 08h25m20s 20°21'N Cancer 1.1 5"7

The coordinates above are given in J2000.0. The pair will be at an angular separation of 67° from the Sun, which is in Virgo at this time of year.

The sky on 5 Oct 2026

The sky on 5 October 2026
Sunrise
06:43
Sunset
18:18
Twilight ends
19:52
Twilight begins
05:09


Waning Crescent

26%

24 days old

Planets
Rise Culm. Set
Mercury 08:55 13:59 19:02
Venus 09:18 13:59 18:39
Moon 00:52 08:29 15:51
Mars 00:51 08:14 15:36
Jupiter 02:16 09:18 16:19
Saturn 18:23 00:33 06:42
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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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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