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Lab #2. Observing the Sky

Lunar Phase Times (Spring 2025)

These are the dates and times of new and first quarter moon phases during Spring 2025. Times are adjusted for Daylight Saving from March through November. Note that 12:00 pm is noon, and 12:00 am is midnight.

The first two columns give the dates and times for the new moon phases from January through July. The next two contain the dates and times for the first quarter phases, occurring roughly a week later. The next two tell us the dates and times at which each first quarter moon (FQM) will culminate (rise to its highest altitude in the sky). Note that this sometimes occurs the evening before, rather than after, the exact time of the first quarter moon. The final column tells us the declination (dec) of the Moon when the first quarter moon is culminating, or how far it lies, in degrees, above or below the Equator.

Show data for Las Cruces, New Mexico

For Las Cruces, New Mexico:

New Moon				First Quarter Moon				FQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
January	18,	12:52	pm	January	25,	9:47	pm	January	25,	5:46	pm	16.5
February	17,	5:01	am	February	24,	5:28	am	February	23,	5:32	pm	24.8
March	18,	7:23	pm	March	25,	1:18	pm	March	25,	7:32	pm	27.6
April	17,	5:52	am	April	23,	8:32	pm	April	23,	7:23	pm	22.0
May	16,	2:01	pm	May	23,	5:11	am	May	22,	7:01	pm	13.0
June	14,	8:54	pm	June	21,	3:55	pm	June	21,	7:10	pm	-3.8
July	14,	3:44	am	July	21,	5:06	am	July	20,	6:31	pm	-13.6

Hide data for Las Cruces, New Mexico

Show data for Carson, California

For Carson, California:

New Moon				First Quarter Moon				FQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
January	18,	11:52	am	January	25,	8:47	pm	January	25,	5:33	pm	16.7
February	17,	4:01	am	February	24,	4:28	am	February	23,	5:20	pm	24.9
March	18,	6:23	pm	March	25,	12:18	pm	March	25,	7:20	pm	27.5
April	17,	4:52	am	April	23,	7:32	pm	April	23,	7:11	pm	21.9
May	16,	1:01	pm	May	23,	4:11	am	May	22,	6:48	pm	12.7
June	14,	7:54	pm	June	21,	2:55	pm	June	21,	6:57	pm	-4.0
July	14,	2:44	am	July	21,	4:06	am	July	20,	6:18	pm	-13.8

Hide data for Carson, California

Show data for Los Angeles, California

For Los Angeles, California:

New Moon				First Quarter Moon				FQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
January	18,	11:52	am	January	25,	8:47	pm	January	25,	5:34	pm	16.7
February	17,	4:01	am	February	24,	4:28	am	February	23,	5:21	pm	24.9
March	18,	6:23	pm	March	25,	12:18	pm	March	25,	7:21	pm	27.5
April	17,	4:52	am	April	23,	7:32	pm	April	23,	7:12	pm	21.9
May	16,	1:01	pm	May	23,	4:11	am	May	22,	6:49	pm	12.7
June	14,	7:54	pm	June	21,	2:55	pm	June	21,	6:58	pm	-4.0
July	14,	2:44	am	July	21,	4:06	am	July	20,	6:19	pm	-13.8

Hide data for Los Angeles, California

Show data for Portland, OR

For Portland, OR:

New Moon				First Quarter Moon				FQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
January	18,	11:52	am	January	25,	8:47	pm	January	25,	5:52	pm	16.6
February	17,	4:01	am	February	24,	4:28	am	February	23,	5:39	pm	24.8
March	18,	6:23	pm	March	25,	12:18	pm	March	25,	7:39	pm	27.3
April	17,	4:52	am	April	23,	7:32	pm	April	23,	7:29	pm	21.6
May	16,	1:01	pm	May	23,	4:11	am	May	22,	7:06	pm	12.5
June	14,	7:54	pm	June	21,	2:55	pm	June	21,	7:15	pm	-4.2
July	14,	2:44	am	July	21,	4:06	am	July	20,	6:37	pm	-13.9

Hide data for Portland, OR

Show data for Orange City, IA

For Orange City, IA

New Moon				First Quarter Moon				FQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
January	18,	1:52	pm	January	25,	10:47	pm	January	25,	6:01	pm	16.2
February	17,	6:01	am	February	24,	6:28	am	February	24,	6:48	pm	27.3
March	18,	8:23	pm	March	25,	2:18	pm	March	25,	7:48	pm	27.5
April	17,	6:52	am	April	23,	9:32	pm	April	23,	7:39	pm	22.0
May	16,	3:01	pm	May	23,	6:11	am	May	22,	7:16	pm	13.0
June	14,	9:54	pm	June	21,	4:55	pm	June	21,	7:26	pm	-3.8
July	14,	4:44	am	July	21,	6:06	am	July	20,	6:47	pm	-13.5

Hide data for Orange City, IA

Show data for Washington, D.C.

For Washington, D.C.:

New Moon				First Quarter Moon				FQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
January	18,	2:52	pm	January	25,	11:47	pm	January	25,	5:43	pm	15.9
February	17,	7:01	am	February	24,	7:28	am	February	24,	6:29	pm	27.3
March	18,	9:23	pm	March	25,	3:18	pm	March	25,	7:28	pm	27.6
April	17,	7:52	am	April	23,	10:32	pm	April	23,	7:20	pm	22.3
May	16,	4:01	pm	May	23,	7:11	am	May	22,	6:58	pm	13.3
June	14,	10:54	pm	June	21,	5:55	pm	June	21,	7:07	pm	-3.4
July	14,	5:44	am	July	21,	7:06	am	July	21,	7:13	pm	-18.4

Hide data for Rochester, NY

Show data for Rochester, NY

For Washington, D.C.:

New Moon				First Quarter Moon				FQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
January	18,	2:52	pm	January	25,	11:47	pm	January	25,	5:45	pm	15.9
February	17,	7:01	am	February	24,	7:28	am	February	24,	6:31	pm	27.2
March	18,	9:23	pm	March	25,	3:18	pm	March	25,	7:31	pm	27.5
April	17,	7:52	am	April	23,	10:32	pm	April	23,	7:22	pm	22.2
May	16,	4:01	pm	May	23,	7:11	am	May	22,	7:00	pm	13.3
June	14,	10:54	pm	June	21,	5:55	pm	June	21,	7:10	pm	-3.4
July	14,	5:44	am	July	21,	7:06	am	July	21,	7:15	pm	-18.4

Hide data for Rochester, NY

We also provide information on the last quarter moons. The first two columns again give the dates and times for the new moon phases. The next two contain the dates and times for the last quarter phases, occurring roughly three weeks later. The next two tell us the dates and times at which each last quarter moon (LQM) will culminate. The final column tells us the declination of the Moon when the last quarter moon is culminating.

Show data for Las Cruces, New Mexico

For Las Cruces, New Mexico:

New Moon				Last Quarter Moon				LQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
December	19,	6:43	pm	January	10,	8:48	am	January	10,	5:51	am	-11.0
January	18,	12:52	pm	February	9,	5:43	am	February	9,	5:56	am	-23.5
February	17,	5:01	am	March	11,	3:39	am	March	11,	7:16	am	-29.1
March	18,	7:23	pm	April	9,	10:52	pm	April	10,	7:41	am	-25.4
April	17,	5:52	am	May	9,	3:10	pm	May	9,	7:10	am	-18.7
May	16,	2:01	pm	June	8,	4:01	am	June	8,	7:18	am	-3.4
June	14,	8:54	pm	July	7,	1:29	pm	July	7,	6:43	am	7.4
July	14,	3:44	am	August	5,	8:21	pm	August	6,	7:10	am	22.6

Hide data for Las Cruces, New Mexico

Show data for Carson, California

For Carson, California:

New Moon				Last Quarter Moon				LQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
December	19,	5:43	pm	January	10,	7:48	am	January	10,	5:38	am	-11.2
January	18,	11:52	am	February	9,	4:43	am	February	9,	5:44	am	-23.7
February	17,	4:01	am	March	11,	2:39	am	March	11,	7:04	am	-29.2
March	18,	6:23	pm	April	9,	9:52	pm	April	10,	7:29	am	-25.3
April	17,	4:52	am	May	9,	2:10	pm	May	9,	6:57	am	-18.6
May	16,	1:01	pm	June	8,	3:01	am	June	8,	7:05	am	-3.2
June	14,	7:54	pm	July	7,	12:29	pm	July	7,	6:30	am	7.6
July	14,	2:44	am	August	5,	7:21	pm	August	6,	6:58	am	22.7

Hide data for Carson, California

Show data for Los Angeles, California

For Los Angeles, California:

New Moon				Last Quarter Moon				LQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
December	19,	5:43	pm	January	10,	7:48	am	January	10,	5:39	am	-11.2
January	18,	11:52	am	February	9,	4:43	am	February	9,	5:44	am	-23.7
February	17,	4:01	am	March	11,	2:39	am	March	11,	7:05	am	-29.2
March	18,	6:23	pm	April	9,	9:52	pm	April	10,	7:29	am	-25.3
April	17,	4:52	am	May	9,	2:10	pm	May	9,	6:58	am	-18.6
May	16,	1:01	pm	June	8,	3:01	am	June	8,	7:06	am	-3.2
June	14,	7:54	pm	July	7,	12:29	pm	July	7,	6:31	am	7.6
July	14,	2:44	am	August	5,	7:21	pm	August	6,	6:59	am	22.7

Hide data for Los Angeles, California

Show data for Portland, OR

For Portland, OR:

New Moon				Last Quarter Moon				LQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
December	19,	5:43	pm	January	10,	7:48	am	January	10,	5:57	am	-11.4
January	18,	11:52	am	February	9,	4:43	am	February	9,	6:02	am	-23.8
February	17,	4:01	am	March	11,	2:39	am	March	11,	7:22	am	-29.2
March	18,	6:23	pm	April	9,	9:52	pm	April	10,	7:47	am	-25.4
April	17,	4:52	am	May	9,	2:10	pm	May	9,	7:15	am	-18.6
May	16,	1:01	pm	June	8,	3:01	am	June	8,	7:23	am	-3.3
June	14,	7:54	pm	July	7,	12:29	pm	July	7,	6:49	am	7.5
July	14,	2:44	am	August	5,	7:21	pm	August	6,	7:16	am	22.5

Hide data for Portland, OR

Show data for Orange City, IA

For Orange City, IA:

New Moon				Last Quarter Moon				LQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
December	19,	7:43	pm	January	10,	9:48	am	January	10,	6:07	am	-10.9
January	18,	1:52	pm	February	9,	6:43	am	February	9,	6:12	am	-23.5
February	17,	6:01	am	March	11,	4:39	am	March	11,	7:32	am	-29.2
March	18,	8:23	pm	April	9,	11:52	pm	April	10,	7:57	am	-25.6
April	17,	6:52	am	May	9,	4:10	pm	May	9,	7:25	am	-19.0
May	16,	3:01	pm	June	8,	5:01	am	June	8,	7:34	am	-3.7
June	14,	9:54	pm	July	7,	2:29	pm	July	7,	6:59	am	7.1
July	14,	4:44	am	August	5,	9:21	pm	August	6,	7:26	am	22.3

Hide data for Orange City, IA

Show data for Washington, D.C.

For Washington, D.C.:

New Moon				Last Quarter Moon				LQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
December	19,	8:43	pm	January	10,	10:48	am	January	10,	5:49	am	-10.6
January	18,	2:52	pm	February	9,	7:43	am	February	9,	5:53	am	-23.3
February	17,	7:01	am	March	11,	5:39	am	March	11,	7:13	am	-29.1
March	18,	9:23	pm	April	10,	12:52	am	April	10,	7:38	am	-25.7
April	17,	7:52	am	May	9,	5:10	pm	May	9,	7:07	am	-19.2
May	16,	4:01	pm	June	8,	6:01	am	June	8,	7:15	am	-4.0
June	14,	10:54	pm	July	7,	3:29	pm	July	7,	6:40	am	6.8
July	14,	5:44	am	August	5,	10:21	pm	August	6,	7:07	am	22.1

Hide data for Rochester, NY

Show data for Rochester, NY

For Washington, D.C.:

New Moon				Last Quarter Moon				LQM Culminations				Lunar Dec
Date		Time		Date		Time		Date		Time		Degrees
December	19,	8:43	pm	January	10,	10:48	am	January	10,	5:51	am	-10.7
January	18,	2:52	pm	February	9,	7:43	am	February	9,	5:56	am	-23.3
February	17,	7:01	am	March	11,	5:39	am	March	11,	7:15	am	-29.2
March	18,	9:23	pm	April	10,	12:52	am	April	10,	7:40	am	-25.8
April	17,	7:52	am	May	9,	5:10	pm	May	9,	7:09	am	-19.2
May	16,	4:01	pm	June	8,	6:01	am	June	8,	7:18	am	-4.1
June	14,	10:54	pm	July	7,	3:29	pm	July	7,	6:43	am	6.8
July	14,	5:44	am	August	5,	10:21	pm	August	6,	7:09	am	22.0

Hide data for Rochester, NY

Please do contact us if you are planning to make these observations and would like lunar culmination data for your location.

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