Conjunction between the Moon and Venus

2017 May 22

Dominic Ford – originally published on In-The-Sky.org

The Moon and Venus will make a close approach, passing within 2°15' of each other.

From London (click to change), the pair will be difficult to observe as they will appear no higher than 8° above the horizon. They will be visible in the dawn sky. They will rise at 03:32 (BST), 1 hour and 28 minutes before the Sun, and attain an altitude of 8° above the eastern horizon before fading from view as dawn breaks at around 04:32.

At the moment of closest approach, the Moon will be at mag -10.7, and Venus at mag -5.2, both in the constellation Pisces.

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 Venus at the moment of closest approach will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 01h04m40s +02°52' Pisces -10.7 32'27"9
Venus 01h01m40s +04°59' Pisces -5.2 27"5

The coordinates above are given in J2000.0. The pair will be at an angular separation of 45° from the Sun, which is in Taurus at this time of year.


The details of this observing event were provided courtesy of In-The-Sky.org

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