Simulated image courtesy of Tom Ruen.

New Moon

Dominic Ford, Editor
From the Moon feed

Objects: The Moon
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The sky at

The Moon will pass close to the Sun and become lost in the its glare for a few days.

The Moon's orbital motion carries it around the Earth once every four weeks, and as a result its phases cycle from new moon, through first quarter, full moon and last quarter, back to new moon once every 29.5 days.

This motion also means that the Moon travels more than 12° across the sky from one night to the next, causing it to rise and set nearly an hour later each day. More information about the Moon's phases is available here.

At new moon, the Earth, Moon and Sun all lie in a roughly straight line, with the Moon in the middle, appearing in front of the Sun's glare. In this configuration, we see almost exactly the opposite half of the Moon to that which is illuminated by the Sun, making it doubly unobservable because the side we see is unilluminated.

Observing the Moon in the days after new moon

Over coming days, the Moon will become visible in the late afternoon and dusk sky as a waxing crescent which sets soon after the Sun. By first quarter, in a week's time, it will be visible until around midnight.

Its daily progress is charted below, with all times are given in San Diego local time.

Date Sun
sets at
sets at
Altitude of Moon
at sunset
Direction of Moon
at sunset
15 Nov 202016:4716:44west
16 Nov 202016:4617:28south-west
17 Nov 202016:4618:1915°south-west
18 Nov 202016:4519:1522°south-west
19 Nov 202016:4520:1628°south-west
20 Nov 202016:4521:1933°south
21 Nov 202016:4422:2136°south

The exact moment of new moon

At the moment of closest approach, it will pass within 2°21' of the Sun, in the constellation Libra. The celestial coordinates of the Sun and Moon will be:

Object Right Ascension Declination Constellation Angular Size
The Moon 15h24m50s 16°14'S Libra 33'19"
Sun (centre) 15h22m 18°31'S Libra 32'20"

The coordinates above are given in J2000.0.

The sky on 14 Nov 2020

The sky on 14 November 2020
Twilight ends
Twilight begins

29-day old moon
Waxing Crescent


29 days old

Rise Culm. Set
Mercury 04:48 10:22 15:56
Venus 03:47 09:33 15:18
Moon 05:31 11:11 16:44
Mars 14:50 21:06 03:21
Jupiter 10:46 15:49 20:52
Saturn 11:00 16:06 21:11
All times shown in PST.


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.


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 Nov 2020  –  New Moon
21 Nov 2020  –  Moon at First Quarter
30 Nov 2020  –  Full Moon
07 Dec 2020  –  Moon at Last Quarter

Image credit

Simulated image courtesy of Tom Ruen.


San Diego



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