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Close approach of the Moon and Mars

Dominic Ford, Editor
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The sky at

The Moon and Mars will make a close approach, passing within 4°27' of each other. The Moon will be 11 days old.

From Fairfield, the pair will be visible in the evening sky, becoming accessible around 16:47 (EDT) as the dusk sky fades, 29° above your eastern horizon. They will then reach its highest point in the sky at 20:31, 54° above your southern horizon. They will continue to be observable until around 02:13, when they sink below 7° above your western horizon.

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The Moon will be at mag -12.4 in Cetus; and Mars will be at mag -1.3 in Pisces.

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 01h06m20s +01°56' Cetus -12.4 29'27"6
Mars 00h58m50s +05°59' Pisces -1.3 15"4

The coordinates above are given in J2000.0. The pair will be at an angular separation of 131° from the Sun, which is in Scorpius at this time of year.

The sky on 25 November 2020
Twilight ends
Twilight begins

10-day old moon
Waxing Gibbous


10 days old

Rise Culm. Set
Mercury 05:43 10:46 15:48
Venus 04:23 09:46 15:08
Moon 14:31 20:41 01:53
Mars 14:07 20:31 02:58
Jupiter 10:38 15:20 20:03
Saturn 10:47 15:32 20:17
All times shown in EST.


The circumstances of this event were computed using the DE405 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

13 Oct 2020  –  Mars at opposition
12 Jul 2021  –  Mars at aphelion
20 Sep 2021  –  Mars at apogee
08 Oct 2021  –  Mars at solar conjunction

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