Conjunction of the Moon and Jupiter

Dominic Ford, Editor
From the Conjunctions feed


The Moon and Jupiter will share the same right ascension, with the Moon passing 52' to the south of Jupiter. The Moon will be 18 days old.

At around the same time, the two objects will also make a close approach, technically called an appulse.

From Cambridge , the pair will be visible in the morning sky, becoming accessible around 22:14, when they reach an altitude of 7° above your eastern horizon. They will then reach their highest point in the sky at 03:22, 45° above your southern horizon. They will be lost to dawn twilight around 05:26, 37° above your south-western horizon.

The Moon will be at mag -12.6 in the constellation Aquarius, and Jupiter at mag -2.8 in the neighbouring constellation of Pisces.

The pair will be a little too widely separated to fit comfortably within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.

A graph of the angular separation between the Moon and Jupiter around the time of closest approach is available here.

The positions of the two objects at the moment of conjunction will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 23h51m50s 3°20'S Aquarius -12.6 32'34"8
Jupiter 23h51m50s 2°28'S Pisces -2.8 46"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 141° from the Sun, which is in Leo 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

87%

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

17 Jul 1998  –  Jupiter enters retrograde motion
15 Sep 1998  –  Jupiter at opposition
13 Nov 1998  –  Jupiter ends retrograde motion
24 Aug 1999  –  Jupiter enters retrograde motion

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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