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 Saturn

Dominic Ford, Editor
From the Conjunctions feed

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The sky at

The Moon and Saturn will share the same right ascension, with the Moon passing 3°48' to the south of Saturn. The Moon will be 14 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 21:35, when they reach an altitude of 7° above your south-eastern horizon. They will then reach their highest point in the sky at 01:39, 30° above your southern horizon. They will be lost to dawn twilight around 05:20, 11° above your south-western horizon.

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The Moon will be at mag -12.7, and Saturn at mag 0.2, both in the constellation Capricornus.

The pair 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.

A graph of the angular separation between the Moon and Saturn 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 20h52m40s -22°09' Capricornus -12.7 32'09"3
Saturn 20h52m40s -18°20' Capricornus 0.2 18"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 171° from the Sun, which is in Cancer at this time of year.

The sky on 24 July 2021
Sunrise
05:40
Sunset
20:20
Twilight ends
22:16
Twilight begins
03:44

14-day old moon
Waning Gibbous

99%

14 days old

Planets
Rise Culm. Set
Mercury 04:49 12:17 19:46
Venus 08:18 15:04 21:50
Moon 21:16 01:09 05:53
Mars 07:47 14:40 21:33
Jupiter 21:36 02:55 08:13
Saturn 20:43 01:39 06:35
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

23 May 2021  –  Saturn enters retrograde motion
02 Aug 2021  –  Saturn at opposition
10 Oct 2021  –  Saturn ends retrograde motion
04 Feb 2022  –  Saturn at solar conjunction

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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Fairfield

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41.14°N
73.26°W
EDT

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