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 sky at

The Moon's monthly orbit around the Earth will carry it to its closest point to the Sun – its perihelion – at a distance of 0.9810 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 0.9837 AU from the Sun, and the Moon will lie at a distance of 0.9810 AU from the Sun.

This distance between the Earth and Moon will be 0.0027 AU (404,000 km).

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

Object Right Ascension Declination Constellation Angular Size
The Moon 19h22m40s -22°15' Sagittarius 29'30"
Sun (centre) 19h45m -21°14' Sagittarius 32'31"

The coordinates above are given in J2000.0.

The sky on 28 October 2020
Sunrise
07:48
Sunset
17:58
Twilight ends
19:41
Twilight begins
06:04

12-day old moon
Waxing Gibbous

91%

12 days old

Planets
Rise Culm. Set
Mercury 07:13 12:27 17:42
Venus 04:35 10:44 16:53
Moon 17:22 23:24 04:20
Mars 17:18 23:42 06:11
Jupiter 13:50 18:07 22:24
Saturn 14:07 18:30 22:53
All times shown in PDT.

Warning

Never attempt to point a pair of binoculars or a telescope at an object close to the Sun. Doing so may result in immediate and permanent blindness.

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

14 Jan 2010  –  The Moon at perihelion
14 Jan 2010  –  New Moon
16 Jan 2010  –  The Moon at apogee
23 Jan 2010  –  Moon at First Quarter

Image credit

Simulated image courtesy of Tom Ruen.

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