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 4.4 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 7 days old.

From Fairfield , the pair will become visible at around 19:53 (EDT), 22° above your south-western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting at 22:56.

The Moon will be at mag -11.7; and Neptune will be at mag 7.9. Both objects will lie in the constellation Ophiuchus.

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 17h36m40s 22°00'S Ophiuchus -11.7 29'37"5
Neptune 17h36m40s 22°04'S Ophiuchus 7.9 2"2

The coordinates above are given in J2000.0. The pair will be at an angular separation of 83° from the Sun, which is in Virgo at this time of year.

The sky on 5 May 2024

The sky on 5 May 2024
Sunrise
05:43
Sunset
19:54
Twilight ends
21:43
Twilight begins
03:54


Waning Crescent

4%

27 days old

Planets
Rise Culm. Set
Mercury 04:53 11:13 17:34
Venus 05:28 12:18 19:07
Moon 04:16 10:36 17:10
Mars 04:08 10:12 16:16
Jupiter 06:17 13:27 20:37
Saturn 03:32 09:11 14:50
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.

Related news

05 Sep 1982  –  Neptune ends retrograde motion
31 Mar 1983  –  Neptune enters retrograde motion
19 Jun 1983  –  Neptune at opposition
08 Sep 1983  –  Neptune ends retrograde motion

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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