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Close approach of the Moon and Jupiter

Dominic Ford, Editor
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The sky at

The Moon and Jupiter will make a close approach, passing within 2°57' of each other. The Moon will be 5 days old.

From Fairfield, the pair will become visible around 20:33 (EDT) as the dusk sky fades, 27° above your south-western horizon. They will then sink towards the horizon, setting 3 hours and 0 minutes after the Sun at 23:13.

Begin typing the name of a town near to you, and then select the town from the list of options which appear below.

The Moon will be at mag -11.4; and Jupiter will be at mag -1.9. Both objects will lie in the constellation Virgo.

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 Jupiter 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 13h06m00s -02°31' Virgo -11.4 30'29"8
Jupiter 13h02m00s -05°19' Virgo -1.9 33"8

The coordinates above are given in J2000.0. The pair will be at an angular separation of 70° from the Sun, which is in Cancer at this time of year.

The sky on 28 July 2017
Twilight ends
Twilight begins

5-day old moon
Waxing Crescent


5 days old

Rise Culm. Set
Mercury 08:08 14:45 21:22
Venus 02:47 10:12 17:37
Moon 11:36 17:31 23:26
Mars 05:40 12:58 20:16
Jupiter 11:45 17:29 23:13
Saturn 17:08 21:50 02:35
All times shown in EDT.


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

07 Apr 2017  –  Jupiter at opposition
26 Oct 2017  –  Jupiter at solar conjunction
08 May 2018  –  Jupiter at opposition
26 Nov 2018  –  Jupiter at solar conjunction

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