Close approach of the Moon and Neptune

Dominic Ford, Editor
From the Appulses feed

Tags: Appulse

The Moon and Neptune will make a close approach, passing within a mere 21.7 arcminutes of each other. From some parts of the world, the Moon will pass in front of Neptune, creating a lunar occultation. The Moon will be 11 days old.

From Fairfield , the pair will be visible in the evening sky, becoming accessible around 18:41 (EST), 57° above your south-eastern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 20:44, 70° above your southern horizon. They will continue to be observable until around 02:00, when they sink below 21° above your western horizon.

The Moon will be at mag -12.4; and Neptune will be at mag 7.8. Both objects will lie in the constellation Gemini.

They will be close enough to fit within the field of view of a telescope, but will also be visible through a pair of binoculars.

A graph of the angular separation between the Moon and Neptune 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 07h20m00s 21°50'N Gemini -12.4 29'48"6
Neptune 07h19m50s 21°29'N Gemini 7.8 2"3

The coordinates above are given in J2000.0. The pair will be at an angular separation of 131° from the Sun, which is in Aquarius at this time of year.

The sky on 22 Nov 2024

The sky on 22 November 2024
Sunrise
06:47
Sunset
16:28
Twilight ends
18:05
Twilight begins
05:10


Waning Crescent

44%

21 days old

Planets
Rise Culm. Set
Mercury 08:40 13:06 17:32
Venus 10:13 14:39 19:06
Moon 22:16 05:32 12:36
Mars 20:52 04:15 11:38
Jupiter 17:26 00:53 08:20
Saturn 13:09 18:41 00:13
All times shown in EST.

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.

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30 Mar 2075  –  Neptune ends retrograde motion
27 Oct 2075  –  Neptune enters retrograde motion
13 Jan 2076  –  Neptune at opposition

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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