Close approach of the Moon and M45

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The Moon and M45 will make a close approach, passing within a mere 46.0 arcminutes of each other. The Moon will be 14 days old.

From Cambridge , the pair will be visible in the evening sky, becoming accessible around 16:59 (EDT), 25° above your eastern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 22:07, 71° above your southern horizon. They will continue to be observable until around 04:26, when they sink below 12° above your western horizon.

The Moon will be at mag -12.8; and M45 will be at mag 1.3. Both objects will lie in the constellation Taurus.

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

A graph of the angular separation between the Moon and M45 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 03h46m50s 24°51'N Taurus -12.8 33'15"8
M45 03h47m30s 24°06'N Taurus 1.3 0"0

The coordinates above are given in J2000.0. The pair will be at an angular separation of 159° from the Sun, which is in Ophiuchus at this time of year.

The sky on 8 Jul 2024

The sky on 8 July 2024
Sunrise
05:13
Sunset
20:22
Twilight ends
22:33
Twilight begins
03:02


Waxing Crescent

10%

3 days old

Planets
Rise Culm. Set
Mercury 07:08 14:25 21:42
Venus 05:58 13:28 20:58
Moon 07:39 15:10 22:29
Mars 01:43 08:52 16:01
Jupiter 02:41 10:08 17:34
Saturn 23:19 04:59 10:40
All times shown in EDT.

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.

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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