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 25.6 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 17:47 (EDT), 40° above your eastern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 21:24, 69° above your southern horizon. They will continue to be observable until around 02:36, when they sink below 21° above your western horizon.

The Moon will be at mag -12.5; and Neptune will be at mag 7.8. Both objects will lie in the constellation Taurus.

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 04h38m10s 20°57'N Taurus -12.5 29'33"7
Neptune 04h38m30s 20°32'N Taurus 7.8 2"3

The coordinates above are given in J2000.0. The pair will be at an angular separation of 145° from the Sun, which is in Sagittarius at this time of year.

The sky on 3 Jul 2024

The sky on 3 July 2024
Sunrise
05:22
Sunset
20:28
Twilight ends
22:35
Twilight begins
03:15


Waning Crescent

3%

27 days old

Planets
Rise Culm. Set
Mercury 06:57 14:20 21:44
Venus 06:00 13:30 21:00
Moon 02:47 10:46 18:54
Mars 02:04 09:06 16:08
Jupiter 03:09 10:31 17:53
Saturn 23:46 05:28 11:09
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.

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19 Feb 2058  –  Neptune ends retrograde motion
18 Sep 2058  –  Neptune enters retrograde motion
06 Dec 2058  –  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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