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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 3°44' of each other. The Moon will be 14 days old.

From Cambridge, the pair will be visible between 20:14 and 05:01. They will become accessible around 20:14, when they rise to an altitude of 7° above your south-eastern horizon. They will reach its highest point in the sky at 00:39, 33° above your southern horizon. They will become inaccessible around 05:01 when they sink below 7° above your south-western horizon.

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 -12.7 in Aquarius; and Jupiter will be at mag -2.9 in Capricornus.

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 22h02m10s -17°17' Aquarius -12.7 31'33"4
Jupiter 21h57m00s -13°45' Capricornus -2.9 48"0

The coordinates above are given in J2000.0. The pair will be at an angular separation of 174° from the Sun, which is in Leo at this time of year.

The sky on 22 August 2021
Sunrise
05:59
Sunset
19:35
Twilight ends
21:19
Twilight begins
04:15

14-day old moon
Waxing Gibbous

99%

14 days old

Planets
Rise Culm. Set
Mercury 07:36 13:58 20:20
Venus 09:14 15:08 21:02
Moon 20:15 00:38 05:32
Mars 07:17 13:46 20:14
Jupiter 19:23 00:39 05:51
Saturn 18:32 23:23 04:17
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

19 Aug 2021  –  Jupiter at opposition
05 Mar 2022  –  Jupiter at solar conjunction
26 Sep 2022  –  Jupiter at opposition
20 Jan 2023  –  Jupiter at perihelion

Image credit

None available.

Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EDT

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