Simulated image courtesy of Tom Ruen.

Moon at Last Quarter

Dominic Ford, Editor
From the Moon feed

Objects: The Moon
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The sky at

The Moon will pass last quarter phase, rising in the middle of the night and appearing prominent in the pre-dawn sky.

From Fairfield, it will be visible from soon after it rises, at 02:55, until soon before it sets at 11:21.

Begin typing the name of a town near to you, and then select the town from the list of options which appear below.

At this time in its monthly cycle of phases, it appears almost exactly half illuminated.

The Moon orbits the Earth once every four weeks, causing its phases to cycle through new moon, first quarter, full moon, last quarter, and back to new moon once every 29.5 days.

As it progresses through this cycle, it is visible at different times of day. At last quarter, it rises in the middle of the night and appears high in the sky by dawn. It sets at around lunchtime. More information about the Moon's phases is available here.

Observing the Moon at last quarter

Over coming days, the Moon will rise later each day, so that it is visible for less time before sunrise and rises less far above the eastern horizon before dawn. By the time it reaches new moon, it will rise at around dawn and set at around dusk, making it visible only during the daytime.

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

Date Sun
rises at
rises at
Altitude of Moon
at sunrise
Direction of Moon
at sunrise
28 Mar 202406:4120:44south-west
29 Mar 202406:4021:4712°south-west
30 Mar 202406:3822:5315°south-west
31 Mar 202406:3600:0017°south-west
01 Apr 202406:3501:0619°south
02 Apr 202406:3302:0920°south
03 Apr 202406:3103:0420°south
04 Apr 202406:3003:5119°south-east
05 Apr 202406:2804:2917°south-east
06 Apr 202406:2605:0014°south-east
07 Apr 202406:2505:2710°east
08 Apr 202406:2305:52east

The exact moment of last quarter

The exact moment of last quarter is defined as the time when the Moon's ecliptic longitude is exactly 90° away from the Sun's ecliptic longitude, as observed from the center of the Earth. However, the Moon does not appear in any way special at this instant in time, and a last quarter moon can be observed at any time in the pre-dawn sky.

At the moment it reaches last quarter, the Moon's distance from the Earth will be 379,000 km. Its celestial coordinates will be as follows:

Object Right Ascension Declination Constellation Angular Size
The Moon 18h56m40s 28°06'S Sagittarius 31'29"

The coordinates above are given in J2000.0.

The sky on 1 Apr 2024

The sky on 1 April 2024
Twilight ends
Twilight begins

22-day old moon
Waning Crescent


22 days old

Rise Culm. Set
Mercury 06:54 13:45 20:36
Venus 06:04 11:56 17:48
Moon 02:09 06:25 10:42
Mars 05:21 10:48 16:16
Jupiter 08:08 15:10 22:12
Saturn 05:37 11:12 16:46
All times shown in EDT.


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

01 Apr 2024  –  Moon at Last Quarter
08 Apr 2024  –  New Moon
15 Apr 2024  –  Moon at First Quarter
23 Apr 2024  –  Full Moon

Image credit

Simulated image courtesy of Tom Ruen.





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