Conjunction of the Moon and Saturn

Dominic Ford, Editor
From the Conjunctions feed


The Moon and Saturn will share the same right ascension, with the Moon passing 4'25" to the south of Saturn. The Moon will be 17 days old.

At around the same time, the two objects will also make a close approach, technically called an appulse.

From Columbus , the pair will be visible in the morning sky, becoming accessible around 22:35, when they reach an altitude of 11° above your eastern horizon. They will then reach their highest point in the sky at 03:20, 45° above your southern horizon. They will be lost to dawn twilight around 06:07, 31° above your south-western horizon.

The Moon will be at mag -12.4, and Saturn at mag 0.7, both in the constellation Aquarius.

The pair 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.

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 23h44m10s 4°20'S Aquarius -12.4 29'32"9
Saturn 23h44m10s 4°15'S Aquarius 0.7 19"1

The coordinates above are given in J2000.0. The pair will be at an angular separation of 152° from the Sun, which is in Leo at this time of year.

The sky on 12 Apr 2025

The sky on 12 April 2025
Sunrise
06:56
Sunset
20:06
Twilight ends
21:43
Twilight begins
05:20


Waxing Gibbous

99%

14 days old

Planets
Rise Culm. Set
Mercury 06:04 12:00 17:56
Venus 05:29 11:39 17:49
Moon 19:09 00:56 06:33
Mars 12:39 20:06 03:33
Jupiter 09:47 17:12 00:37
Saturn 06:03 11:54 17:45
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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