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 3'27" to the north of Jupiter. The Moon will be 28 days old.

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

From Fairfield however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be no higher than 3° above the horizon at dawn.

The Moon will be at mag -8.9, and Jupiter at mag -2.0, both in the constellation Capricornus.

The pair 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.

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 21h53m20s 13°32'S Capricornus -8.9 33'18"7
Jupiter 21h53m20s 13°36'S Capricornus -2.0 32"3

The coordinates above are given in J2000.0. The pair will be at an angular separation of 18° from the Sun, which is in Aquarius at this time of year.

The sky on 17 Jul 2024

The sky on 17 July 2024
Sunrise
05:32
Sunset
20:22
Twilight ends
22:22
Twilight begins
03:31


Waxing Gibbous

84%

12 days old

Planets
Rise Culm. Set
Mercury 07:50 14:44 21:39
Venus 06:31 13:47 21:04
Moon 17:22 21:50 02:13
Mars 01:38 08:51 16:03
Jupiter 02:25 09:49 17:12
Saturn 22:51 04:32 10:13
All times shown in EDT.

Warning

Never attempt to point a pair of binoculars or a telescope at an object close to the Sun. Doing so may result in immediate and permanent blindness.

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

23 Sep 1961  –  Jupiter ends retrograde motion
02 Jul 1962  –  Jupiter enters retrograde motion
31 Aug 1962  –  Jupiter at opposition
29 Oct 1962  –  Jupiter ends 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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