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The Moon at aphelion

Dominic Ford, Editor
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The sky at

The Moon's monthly orbit around the Earth will carry it to its furthest point from the Sun – its aphelion – at a distance of 1.0182 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 perihelion, the Earth will lie at a distance of 1.0156 AU from the Sun, and the Moon will lie at a distance of 1.0183 AU from the Sun.

This distance between the Earth and Moon will be 0.0027 AU (406,000 km).

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

Object Right Ascension Declination Constellation Angular Size
The Moon 19h35m50s -20°22' Sagittarius 29'24"
Sun (centre) 08h23m +19°21' Cancer 31'29"

The coordinates above are given in J2000.0.

The sky on 26 July 2018
Sunrise
05:29
Sunset
20:09
Twilight ends
22:09
Twilight begins
03:30

13-day old moon
Waxing Gibbous

99%

13 days old

Planets
Rise Culm. Set
Mercury 07:22 14:04 20:45
Venus 09:21 15:43 22:05
Moon 19:33 00:18 04:13
Mars 20:36 01:01 05:22
Jupiter 14:04 19:11 00:22
Saturn 18:06 22:40 03:19
All times shown in EDT.

Source

The circumstances of this event were computed using the DE405 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

19 Jul 2018  –  Moon at First Quarter
27 Jul 2018  –  Full Moon
04 Aug 2018  –  Moon at Last Quarter
11 Aug 2018  –  New Moon

Image credit

None available.

Cambridge

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Longitude:
Timezone:

42.38°N
71.11°W
EDT

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