Close approach of the Moon and M44

Tuesday 22nd Oct 201904:34

The Moon and M44 will make a close approach, passing within 0°57' of each other. The Moon will be 24 days old.

From London, the pair will be visible in the dawn sky, rising at 23:44 (BST) – 7 hours and 50 minutes before the Sun – and reach an altitude of 57° above the southern horizon before fading from view as dawn breaks at around 07:12.

The Moon will be at mag -11.8, and M44 at mag 3.1, both in the constellation Cancer.

The pair will be a little too widely separated to fit comfortably within the field of view of a telescope, but will be visible through a pair of binoculars.

A graph of the angular separation between the Moon and M44 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 08h41m00s +20°36' Cancer -11.8 32'04"4
M44 08h40m20s +19°40' Cancer 3.1 95'00"0

The coordinates above are given in J2000.0. The pair will be at an angular separation of 80° from the Sun, which is in Virgo at this time of year.

This entry in the observing calendar was provided by