Simulated image courtesy of Tom Ruen.

The Moon at aphelion

Dominic Ford, Editor
From the Moon feed

Objects: The Moon
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The Moon's monthly orbit around the Earth will carry it to its furthest point from the Sun – its aphelion – at a distance of 0.9912 AU from the Sun.

This happens at around the time when the Moon's orbit carries it around the far side of the Earth as seen from the Sun, at around the same time that it passes full moon.

At the moment of the Moon's aphelion, the Earth will lie at a distance of 0.9887 AU from the Sun, and the Moon will lie at a distance of 0.9912 AU from the Sun.

This distance between the Earth and Moon will be 0.0027 AU (401,000 km).

The positions of the Sun and Moon in the sky will be:

Object Right Ascension Declination Constellation Angular Size
The Moon 02h02m50s 9°43'N Pisces 29'43"
Sun (centre) 15h29m 18°58'S Libra 32'21"

The coordinates above are given in J2000.0.

The sky on 16 Nov 2021

The sky on 16 November 2021
Twilight ends
Twilight begins

12-day old moon
Waxing Gibbous


12 days old

Rise Culm. Set
Mercury 05:44 11:04 16:23
Venus 10:00 14:48 19:35
Moon 15:31 22:03 04:43
Mars 05:17 10:40 16:03
Jupiter 12:23 17:47 23:11
Saturn 11:33 16:44 21:56
All times shown in PST.


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

11 Nov 2021  –  Moon at First Quarter
19 Nov 2021  –  Full Moon
27 Nov 2021  –  Moon at Last Quarter
03 Dec 2021  –  New Moon

Image credit

Simulated image courtesy of Tom Ruen.


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