Close approach of the Moon and Saturn

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The Moon and Saturn will make a close approach, passing within 3°24' of each other. The Moon will be 16 days old.

From South El Monte , the pair will be visible between 18:40 and 05:07. They will become accessible at around 18:40, when they rise to an altitude of 10° above your eastern horizon. They will reach their highest point in the sky at 23:54, 58° above your southern horizon. They will become inaccessible at around 05:07 when they sink below 10° above your western horizon.

The Moon will be at mag -12.7; and Saturn will be at mag 0.5. Both objects will lie in the constellation Virgo.

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 Saturn 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 11h55m30s 0°27'S Virgo -12.7 31'44"4
Saturn 12h02m00s 2°32'N Virgo 0.5 19"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 176° from the Sun, which is in Pisces at this time of year.

The sky on 12 Sep 2025

The sky on 12 September 2025
Sunrise
06:30
Sunset
19:02
Twilight ends
20:27
Twilight begins
05:05


Waning Gibbous

64%

20 days old

Planets
Rise Culm. Set
Mercury 06:28 12:47 19:05
Venus 04:15 11:00 17:44
Moon 21:29 04:44 12:09
Mars 09:11 14:49 20:28
Jupiter 01:42 08:49 15:55
Saturn 19:30 01:25 07:20
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.

Related news

20 Mar 1951  –  Saturn at opposition
28 May 1951  –  Saturn ends retrograde motion
24 Jan 1952  –  Saturn enters retrograde motion
01 Apr 1952  –  Saturn at opposition

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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