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BAA Observing calendar

Conjunction between the Moon and Jupiter

Wednesday, 2018, March 7 - 09:02

Dominic Ford – originally published on

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

From London (click to change), the pair will be visible in the morning sky. They will become accessible at around 01:00, when they rise 7° above your south-eastern horizon. They will then reach its highest point in the sky at 04:24, 21° above your southern horizon. They will be lost to dawn twilight at around 06:11, 17° above your south-western horizon.

At the moment of closest approach, the Moon will be at mag -12.2, and Jupiter at mag -2.2, 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.

The precise positions of the Moon and Jupiter at the moment of closest approach will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 15h27m50s -13°31' Libra -12.2 30'15"4
Jupiter 15h23m30s -17°21' 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 details of this observing event were provided courtesy of