The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

Conjunction of the Moon and Jupiter

Dominic Ford, Editor
From the Conjunctions feed

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Ashburn
The sky at

The Moon and Jupiter will share the same right ascension, with the Moon passing 4°06' to the north of Jupiter. The Moon will be 2 days old.

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

From Ashburn, the pair will be difficult to observe as they will appear no higher than 13° above the horizon. They will become visible at around 18:53 (EDT) as the dusk sky fades, 13° above your south-western horizon. They will then sink towards the horizon, setting 1 hour and 42 minutes after the Sun at 20:17.

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The Moon will be at mag -10.0, and Jupiter at mag -1.8, both in the constellation Libra.

The pair 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.

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 15h26m50s -13°56' Libra -10.0 31'01"2
Jupiter 15h26m50s -18°02' Libra -1.8 31"3

The coordinates above are given in J2000.0. The pair will be at an angular separation of 34° from the Sun, which is in Virgo at this time of year.

The sky on 11 October 2018
Sunrise
07:14
Sunset
18:36
Twilight ends
20:05
Twilight begins
05:45

2-day old moon
Waxing Crescent

8%

2 days old

Planets
Rise Culm. Set
Mercury 08:28 13:48 19:09
Venus 09:21 14:08 18:56
Moon 09:52 15:10 20:29
Mars 15:51 20:43 01:36
Jupiter 10:13 15:15 20:17
Saturn 13:18 18:02 22:46
All times shown in EDT.

Source

The circumstances of this event were computed using the DE405 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

08 May 2018, 20:28 EDT  –  Jupiter at opposition
10 Jun 2019, 11:17 EDT  –  Jupiter at opposition
14 Jul 2020, 03:48 EDT  –  Jupiter at opposition
19 Aug 2021, 20:18 EDT  –  Jupiter at opposition

Image credit

The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

Ashburn

Latitude:
Longitude:
Timezone:

39.04°N
77.49°W
EDT

Color scheme