The Moon

by Dominic Ford, Editor
Last updated: 24 Mar 2020

The Moon is a 3 day-old waxing crescent, and is approaching first quarter. From San Diego, it will become visible around 20:17 (PDT), 23° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 2 hours and 18 minutes after the Sun at 22:18.

28 Jun 2022  –  New Moon
06 Jul 2022  –  Moon at First Quarter
13 Jul 2022  –  Full Moon
20 Jul 2022  –  Moon at Last Quarter
The Moon

The Moon at First Quarter. Simulated image courtesy of Tom Ruen.

The Moon is the Earth's only natural satellite, orbiting it once every 27.3 days, at a distance of 380,000 km (0.00254 astronomical units).

It has almost exactly the same angular size as the Sun – roughly half a degree – a coincidence which means it can occasionally completely cover the Sun's disk to generate a total solar eclipse, but with so little margin that the geometry has to be absolutely exact.

The Moon is the only heavenly body on which surface features can be resolved by the unaided eye. Its mottled pattern of light and dark areas represent two distinct types of terrain. The dark areas are called maria – originally so named because they were thought to be oceans of water, but they are now known to be vast flat volcanic planes. Between the maria, the lighter colored terrain is considerably rougher and more mountainous – the lunar highlands.

To bring the Moon's heavily cratered surface into view, nothing more expensive than a cheap pair of binoculars is needed.

Dates of the Moon's phases

The table below lists the phases of the Moon in 2022, computed from NASA's DE430 planetary ephemeris. To show events in other years, use the control below.

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The Moons phases in 2022

Date Event Moon's declination
Date Event Moon's declination
02 Jan 2022 10:34 PSTNew Moon26°17'S
09 Jan 2022 10:11 PSTMoon at First Quarter4°21'N
17 Jan 2022 15:48 PSTFull Moon24°51'N
25 Jan 2022 05:41 PSTMoon at Last Quarter11°20'S
31 Jan 2022 21:47 PSTNew Moon21°48'S
08 Feb 2022 05:50 PSTMoon at First Quarter16°54'N
16 Feb 2022 08:56 PSTFull Moon16°57'N
23 Feb 2022 14:33 PSTMoon at Last Quarter21°54'S
02 Mar 2022 09:36 PSTNew Moon11°34'S
10 Mar 2022 02:46 PSTMoon at First Quarter25°10'N
18 Mar 2022 00:17 PDTFull Moon4°55'N
24 Mar 2022 22:37 PDTMoon at Last Quarter26°44'S
31 Mar 2022 23:25 PDTNew Moon1°16'N
08 Apr 2022 23:48 PDTMoon at First Quarter26°22'N
16 Apr 2022 11:54 PDTFull Moon8°04'S
23 Apr 2022 04:56 PDTMoon at Last Quarter24°18'S
30 Apr 2022 13:29 PDTNew Moon13°49'N
08 May 2022 17:22 PDTMoon at First Quarter20°25'N
15 May 2022 21:14 PDTFull Moon19°15'S
22 May 2022 11:43 PDTMoon at Last Quarter15°51'S
30 May 2022 04:31 PDTNew Moon23°14'N
07 Jun 2022 07:49 PDTMoon at First Quarter9°41'N
14 Jun 2022 04:51 PDTFull Moon25°57'S
20 Jun 2022 20:11 PDTMoon at Last Quarter3°59'S
28 Jun 2022 19:53 PDTNew Moon26°54'N
06 Jul 2022 19:14 PDTMoon at First Quarter3°00'S
13 Jul 2022 11:37 PDTFull Moon26°09'S
20 Jul 2022 07:19 PDTMoon at Last Quarter8°48'N
28 Jul 2022 10:56 PDTNew Moon23°38'N
05 Aug 2022 04:07 PDTMoon at First Quarter15°12'S
11 Aug 2022 18:35 PDTFull Moon19°51'S
18 Aug 2022 21:36 PDTMoon at Last Quarter19°59'N
27 Aug 2022 01:18 PDTNew Moon14°34'N
03 Sep 2022 11:08 PDTMoon at First Quarter24°15'S
10 Sep 2022 02:58 PDTFull Moon8°55'S
17 Sep 2022 14:52 PDTMoon at Last Quarter26°39'N
25 Sep 2022 14:55 PDTNew Moon2°07'N
02 Oct 2022 17:14 PDTMoon at First Quarter27°23'S
09 Oct 2022 13:54 PDTFull Moon4°11'N
17 Oct 2022 10:15 PDTMoon at Last Quarter26°11'N
25 Oct 2022 03:49 PDTNew Moon11°05'S
31 Oct 2022 23:37 PDTMoon at First Quarter23°12'S
08 Nov 2022 03:02 PSTFull Moon16°46'N
16 Nov 2022 05:27 PSTMoon at Last Quarter18°27'N
23 Nov 2022 14:58 PSTNew Moon22°02'S
30 Nov 2022 06:37 PSTMoon at First Quarter12°56'S
07 Dec 2022 20:08 PSTFull Moon25°28'N
16 Dec 2022 00:56 PSTMoon at Last Quarter5°53'N
23 Dec 2022 02:17 PSTNew Moon27°18'S
29 Dec 2022 17:21 PSTMoon at First Quarter0°34'N

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32.72°N
117.16°W
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