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 2°38' of each other. The Moon will be 12 days old.

From Cambridge , the pair will be visible in the evening sky, becoming accessible around 16:45 (EDT), 33° above your eastern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 20:28, 60° above your southern horizon. They will continue to be observable until around 02:21, when they sink below 9° above your western horizon.

The Moon will be at mag -12.6 in Cetus; and Saturn will be at mag -0.1 in Aries.

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 02h40m10s 10°10'N Cetus -12.6 32'43"4
Saturn 02h36m40s 12°41'N Aries -0.1 19"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 133° from the Sun, which is in Sagittarius at this time of year.

The sky on 17 Jul 2024

The sky on 17 July 2024
Sunrise
05:20
Sunset
20:17
Twilight ends
22:22
Twilight begins
03:14


Waxing Gibbous

85%

12 days old

Planets
Rise Culm. Set
Mercury 07:39 14:36 21:32
Venus 06:19 13:39 20:59
Moon 17:18 21:41 01:58
Mars 01:26 08:42 15:58
Jupiter 02:12 09:40 17:08
Saturn 22:43 04:23 10:03
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

06 Nov 1999  –  Saturn at opposition
11 Jan 2000  –  Saturn ends retrograde motion
12 Sep 2000  –  Saturn enters retrograde motion
19 Nov 2000  –  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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