Simulated image courtesy of Tom Ruen.

The Moon at perihelion

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 closest point to the Sun – its perihelion – at a distance of 1.0059 AU from the Sun.

This happens at around the time when the Moon's orbit carries it between the Sun and the Earth, at around the same time that it passes new moon.

At the moment of the Moon's perihelion, the Earth will lie at a distance of 1.0082 AU from the Sun, and the Moon will lie at a distance of 1.0055 AU from the Sun.

This distance between the Earth and Moon will be 0.0027 AU (403,000 km).

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

Object Right Ascension Declination Constellation Angular Size
The Moon 12h54m20s -01°59' Virgo 29'37"
Sun (centre) 10h58m +06°35' Leo 31'43"

The coordinates above are given in J2000.0.

The sky on 22 January 2021
Sunrise
07:12
Sunset
16:57
Twilight ends
18:33
Twilight begins
05:36

9-day old moon
Waxing Gibbous

70%

9 days old

Planets
Rise Culm. Set
Mercury 08:09 13:19 18:29
Venus 06:22 11:00 15:38
Moon 12:14 19:20 01:25
Mars 11:05 18:03 01:02
Jupiter 07:31 12:25 17:19
Saturn 07:19 12:10 17:00
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

07 Sep 2184  –  The Moon at perihelion
09 Sep 2184  –  The Moon at apogee
12 Sep 2184  –  Moon at First Quarter
17 Sep 2184  –  The Moon at aphelion

Image credit

Simulated image courtesy of Tom Ruen.

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Longitude:
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41.14°N
73.26°W
EST

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