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 7.9 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 11 days old.

From Jacksonville , the pair will be visible in the evening sky, becoming accessible around 18:02 (EDT), 39° above your south-eastern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 20:30, 53° above your southern horizon. They will continue to be observable until around 01:21, when they sink below 11° above your western horizon.

The Moon will be at mag -12.3; and Saturn will be at mag 0.7. 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 23h25m10s 6°07'S Aquarius -12.3 29'38"1
Saturn 23h25m20s 6°15'S Aquarius 0.7 18"4

The coordinates above are given in J2000.0. The pair will be at an angular separation of 122° from the Sun, which is in Libra at this time of year.

The sky on 4 Apr 2025

The sky on 4 April 2025
Sunrise
07:09
Sunset
19:46
Twilight ends
21:08
Twilight begins
05:48


Waxing Gibbous

55%

6 days old

Planets
Rise Culm. Set
Mercury 06:19 12:21 18:22
Venus 05:54 12:07 18:20
Moon 12:07 19:34 02:56
Mars 13:17 20:19 03:22
Jupiter 10:34 17:33 00:31
Saturn 06:23 12:16 18:10
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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