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 25.8 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 14 days old.

From Cambridge , the pair will be visible between 21:52 and 02:59. They will become accessible at around 21:52, when they rise to an altitude of 21° above your south-eastern horizon. They will reach their highest point in the sky at 00:25, 31° above your southern horizon. They will become inaccessible at around 02:59 when they sink below 21° above your south-western horizon.

The Moon will be at mag -12.6; and Neptune will be at mag 7.9. Both objects will lie in the constellation Libra.

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 15h08m40s 15°18'S Libra -12.6 30'29"8
Neptune 15h08m00s 15°43'S Libra 7.9 2"3

The coordinates above are given in J2000.0. The pair will be at an angular separation of 174° from the Sun, which is in Taurus at this time of year.

The sky on 23 Nov 2024

The sky on 23 November 2024
Sunrise
06:43
Sunset
16:15
Twilight ends
17:54
Twilight begins
05:03


Waning Crescent

43%

22 days old

Planets
Rise Culm. Set
Mercury 08:33 12:55 17:17
Venus 10:09 14:32 18:54
Moon 23:09 06:06 12:50
Mars 20:36 04:03 11:30
Jupiter 17:09 00:40 08:11
Saturn 12:58 18:29 23:59
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.

Related news

09 May 1965  –  Neptune at opposition
29 Jul 1965  –  Neptune ends retrograde motion
22 Feb 1966  –  Neptune enters retrograde motion
11 May 1966  –  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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