Close approach of the Moon and Jupiter

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The Moon and Jupiter will make a close approach, passing within 3°57' of each other. The Moon will be 20 days old.

From Cambridge , the pair will be visible in the morning sky, becoming accessible around 00:03, when they reach an altitude of 7° above your south-eastern horizon. They will then reach their highest point in the sky at 04:07, 30° above your southern horizon. They will be lost to dawn twilight around 05:51, 25° above your south-western horizon.

The Moon will be at mag -12.2; and Jupiter will be at mag -2.2. Both objects will lie in the constellation Libra.

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 15h27m50s 13°32'S Libra -12.2 30'15"4
Jupiter 15h23m30s 17°21'S Libra -2.2 38"9

The coordinates above are given in J2000.0. The pair will be at an angular separation of 113° from the Sun, which is in Aquarius at this time of year.

The sky on 7 Mar 2018

The sky on 7 March 2018
Sunrise
06:08
Sunset
17:41
Twilight ends
19:14
Twilight begins
04:35


Waning Gibbous

65%

20 days old

Planets
Rise Culm. Set
Mercury 06:42 12:50 18:57
Venus 06:47 12:47 18:46
Moon 22:55 04:12 09:23
Mars 01:45 06:17 10:49
Jupiter 23:10 04:07 09:04
Saturn 02:40 07:16 11:51
All times shown in EST.

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

09 Jun 2017  –  Jupiter ends retrograde motion
08 Mar 2018  –  Jupiter enters retrograde motion
08 May 2018  –  Jupiter at opposition
10 Jul 2018  –  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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