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 1°10' 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 22 days old.

From Jacksonville , the pair will be visible in the dawn sky, rising at 01:11 (EDT) and reaching an altitude of 38° above the southern horizon before fading from view as dawn breaks at around 06:13.

The Moon will be at mag -12.0; and Saturn will be at mag 0.2. Both objects will lie in the constellation Ophiuchus.

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 17h05m50s 19°59'S Ophiuchus -12.0 32'15"6
Saturn 17h05m00s 21°09'S Ophiuchus 0.2 16"6

The coordinates above are given in J2000.0. The pair will be at an angular separation of 90° from the Sun, which is in Aquarius at this time of year.

The sky on 23 Jul 2024

The sky on 23 July 2024
Sunrise
06:37
Sunset
20:25
Twilight ends
21:58
Twilight begins
05:04


Waning Gibbous

90%

18 days old

Planets
Rise Culm. Set
Mercury 08:47 15:16 21:45
Venus 07:41 14:27 21:14
Moon 21:48 03:17 08:54
Mars 02:26 09:18 16:09
Jupiter 03:07 10:04 17:00
Saturn 22:54 04:41 10:29
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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