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 0.9843 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 0.9867 AU from the Sun, and the Moon will lie at a distance of 0.9842 AU from the Sun.

This distance between the Earth and Moon will be 0.0025 AU (366,000 km).

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

Object Right Ascension Declination Constellation Angular Size
The Moon 20h19m20s -14°41' Capricornus 32'33"
Sun (centre) 21h30m -14°43' Capricornus 32'25"

The coordinates above are given in J2000.0.

The sky on 08 February 2013
Sunrise
06:50
Sunset
17:07
Twilight ends
18:42
Twilight begins
05:15

28-day old moon
Waning Crescent

2%

28 days old

Planets
Rise Culm. Set
Mercury 07:33 12:58 18:22
Venus 06:22 11:12 16:02
Moon 05:22 10:23 15:25
Mars 07:34 12:58 18:22
Jupiter 11:22 18:46 02:15
Saturn 23:50 05:09 10:24
All times shown in EST.

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

08 Feb 2013  –  The Moon at perihelion
10 Feb 2013  –  New Moon
17 Feb 2013  –  Moon at First Quarter
19 Feb 2013  –  The Moon at apogee

Image credit

Simulated image courtesy of Tom Ruen.

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