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The Moon at aphelion

Dominic Ford, Editor
From the Moon feed

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Ashburn
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 0.9975 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 0.9954 AU from the Sun, and the Moon will lie at a distance of 0.9980 AU from the Sun.

This distance between the Earth and Moon will be 0.0026 AU (395,000 km).

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

Object Right Ascension Declination Constellation Angular Size
The Moon 23h39m40s -06°26' Aquarius 30'10"
Sun (centre) 13h44m -10°46' Virgo 32'08"

The coordinates above are given in J2000.0.

The sky on 21 October 2018
Sunrise
07:24
Sunset
18:22
Twilight ends
19:51
Twilight begins
05:55

12-day old moon
Waxing Gibbous

90%

12 days old

Planets
Rise Culm. Set
Mercury 09:06 14:06 19:05
Venus 08:19 13:13 18:07
Moon 17:18 23:05 03:53
Mars 15:24 20:23 01:23
Jupiter 09:44 14:44 19:44
Saturn 12:42 17:25 22:09
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

16 Oct 2018, 14:03 EDT  –  Moon at First Quarter
24 Oct 2018, 12:47 EDT  –  Full Moon
31 Oct 2018, 12:42 EDT  –  Moon at Last Quarter
07 Nov 2018, 11:03 EST  –  New Moon

Image credit

None available.

Ashburn

Latitude:
Longitude:
Timezone:

39.04°N
77.49°W
EDT

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