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 51' 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 South El Monte , the pair will be visible in the morning sky, becoming accessible around 20:22, when they reach an altitude of 10° above your eastern horizon. They will then reach their highest point in the sky at 01:08, 47° above your southern horizon. They will be lost to dawn twilight around 05:50, 11° above your western horizon.

The Moon will be at mag -12.6, and Saturn at mag 0.2, both in the constellation Virgo.

The pair will be a little too widely separated to fit comfortably 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 13h46m40s 8°55'S Virgo -12.6 30'53"6
Saturn 13h46m40s 8°03'S Virgo 0.2 19"0

The coordinates above are given in J2000.0. The pair will be at an angular separation of 175° from the Sun, which is in Pisces at this time of year.

The sky on 17 Jul 2025

The sky on 17 July 2025
Sunrise
05:50
Sunset
20:02
Twilight ends
21:43
Twilight begins
04:09


Waning Crescent

46%

22 days old

Planets
Rise Culm. Set
Mercury 07:35 14:15 20:55
Venus 03:00 10:02 17:03
Moon 23:44 06:14 12:54
Mars 10:04 16:22 22:40
Jupiter 04:34 11:44 18:54
Saturn 23:20 05:19 11:17
All times shown in PDT.

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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