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 a mere 16.3 arcminutes of each other. From some parts of the world, the Moon will pass in front of Saturn, creating a lunar occultation. The Moon will be 7 days old.

From Cambridge , the pair will be visible in the evening sky, becoming accessible around 16:52 (EST), 38° above your southern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 17:31, 38° above your southern horizon. They will continue to be observable until around 21:53, when they sink below 11° above your south-western horizon.

The Moon will be at mag -11.9; and Saturn will be at mag 0.8. Both objects will lie in the constellation Aquarius.

They 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.

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 22h59m10s 8°23'S Aquarius -11.9 32'00"2
Saturn 22h59m40s 8°38'S Aquarius 0.8 17"2

The coordinates above are given in J2000.0. The pair will be at an angular separation of 86° from the Sun, which is in Ophiuchus at this time of year.

The sky on 8 Dec 2024

The sky on 8 December 2024
Sunrise
06:58
Sunset
16:10
Twilight ends
17:52
Twilight begins
05:17


Waxing Gibbous

52%

7 days old

Planets
Rise Culm. Set
Mercury 06:24 11:10 15:56
Venus 10:12 14:48 19:24
Moon 12:16 18:00 23:55
Mars 19:41 03:09 10:38
Jupiter 15:59 23:29 06:59
Saturn 12:00 17:31 23:02
All times shown in EST.

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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