Close approach of the Moon and Venus

Tuesday 1st Jan 201922:34

The Moon and Venus will make a close approach, passing within 1°13′ of each other. The Moon will be 25 days old.

From London, the pair will be visible in the dawn sky, rising at 04:05 (BST) – 4 hours and 4 minutes before the Sun – and reach an altitude of 21° above the southern horizon before fading from view as dawn breaks at around 07:41.

The Moon will be at mag -10.7, and Venus at mag -4.5, 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.

At around the same time, the two objects will also share the same right ascension – called a conjunction.

A graph of the angular separation between the Moon and Venus around the time of closest approach is available here.

The positions of the two objects at the moment of closest approach will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 15h32m00s -14°17′ Libra -10.7 30’34″1
Venus 15h30m40s -15°28′ Libra -4.5 26″0

The coordinates above are given in J2000.0. The pair will be at an angular separation of 46° from the Sun, which is in Sagittarius at this time of year.

This entry in the observing calendar was provided by