Onset of			end of	End of	Hours of	Hours of	Sunrise	Sunset	Local	Solar
	AM twilight	Sunrise	Sunset	pm twilight	PM twilight	daylight	darkness	Azimuth	Azimuth	Noon	Altitude
shaded area represents period of Daylight Saving Time
15-Apr	5:22	6:14	9:11 PM	10:05	10:05 PM	14h 57m	---	66°05’	294°26’	1:42 PM	36°54’
30-Apr	4:22	5:25	9:56 PM	10:59	10:59 PM	16h 31m	---	53°39’	306°54’	1:39 PM	41°53’
15-May	3:13	4:38	10:40 PM	12:08	12:08 AM	18h 02m	---	42°01’	318°31’	1:38 PM	45°57’
30-May	---	3:59	11:22 PM	---	---	19h 23m	---	32°06’	328°20’	1:40 PM	48°48’
15-Jun	---	3:35	11:51 PM	---	---	20h 16m	---	25°40’	334°28’	1:43 PM	50°17’
21-Jun	---	3:34	11:54 PM	---	---	20h 20m	---	25°04’	334°55’	1:44 PM	50°24’
30-Jun	---	3:41	11:49 PM	---	---	20h 08m	---	26°20’	333°24’	1:46 PM	50°02’
15-Jul	---	4:12	11:22 PM	---	---	19h 10m	---	33°10’	326°20’	1:48 PM	48°24’
30-Jul	3:32	4:54	10:41 PM	12:01	12:01 AM	17h 47m	---	43°20’	316°07’	1:48 PM	45°20’
15-Aug	4:40	5:40	9:50 PM	10:50	10:50 PM	16h 10m	---	55°49’	303°38’	1:46 PM	40°51’
30-Aug	5:31	6:23	9:00 PM	9:51	9:51 PM	14h 37m	---	68°14’	291°14’	1:43 PM	35°46’
15-Sep	6:20	7:07	8:06 PM	8:53	8:53 PM	12h 59m	5h  15m	81°52’	277°40’	1:37 PM	29°47’
30-Sep	7:02	7:47	7:15 PM	8:00	8:00 PM	11h 28m	7h  14m	94°45’	264°49’	1:32 PM	23°58’
15-Oct	7:43	8:29	6:25 PM	7:11	7:11 PM	9h 56m	9h  00m	107°35’	252°03’	1:28 PM	18°15’
30-Oct	7:23	8:13	4:37 PM	5:27	5:27 PM	8h 24m	10h 19m	120°02’	239°40’	12:26 PM	13°01’
15-Nov	8:05	9:02	3:51 PM	4:47	4:47 PM	6h 49m	11h 35m	132°22’	227°25’	12:27 PM	8°21’
30-Nov	8:40	9:44	3:17 PM	4:21	4:21 PM	5h 33m	12h 21m	141°54’	217°57’	12:31 PM	5°14’
15-Dec	9:03	10:14	3:00 PM	4:11	4:11 PM	4h 46m	12h 47m	147°29’	212°27’	12:37 PM	3°40’
21-Dec	9:08	10:19	3:01 PM	4:13	4:13 PM	4h 42m	12h 49m	148°04’	211°55’	12:40 PM	3°31’
30-Dec	9:09	10:19	3:10 PM	4:21	4:21 PM	4h 51m	12h 45m	146°56’	213°06’	12:45 PM	3°49’
15-Jan	8:54	9:57	3:47 PM	4:50	4:50 PM	5h 50m	12h 13m	139°55’	220°13’	12:51 PM	5°53’
30-Jan	8:25	9:20	4:31 PM	5:27	5:27 PM	7h 11m	11h 18m	129°43’	230°29’	12:55 PM	9°22’
15-Feb	7:43	8:32	5:21 PM	6:11	6:11 PM	8h 49m	9h 55m	117°00’	243°17’	12:56 PM	14°23’
28-Feb	7:03	7:51	6:00 PM	6:44	6:44 PM	10h 09m	8h 45m	106°01’	254°20’	12:55 PM	19°06’
15-Mar	6:14	7:00	6:43 PM	7:29	7:29 PM	11h 43m	6h 52m	93°03’	267°22’	12:51 PM	24°56’
30-Mar	5:21	6:09	7:25 PM	8:12	8:12 PM	13h 16m	4h 35m	80°01’	280°27’	12:46 PM	30°50’
Notes:
1	These tables were calculated for the years 2002 - 2003. The year-to-year changes, however are quite minor,
	and these data can be used year after year.
2	"Twilight" and "Darkness":
		"Twilight", in this table, means "civil twilight", that is, the period when the sun has set but is less
		than six degrees below the hypothetical horizon. During this time, large objects on the earth may
		be seen but no detail is discernible. The brightest stars and planets may be seen if skies are clear.
		"Darkness", in this table, means the time between periods of "astronomical twilight", that is, when
		the sun is below the hypothetical horizon by more than eighteen degrees. This is the period when
		illumination of the sky from scattered sunlight is less than that from starlight and other light sources
		in the sky. Note, then, that "darkness hours" is less than (24 hours - the number of daylight hours).
3	Sunrise and Sunset Azimuths
		The Azimuth is the location on a compass rose. Thus, if the sun rose directly in the east, its
		azimuth would be 90°. The closer one is on the earth's surface to the Arctic and Antarctic Circles,
		the closer the following holds true: at winter solstice, the sun simultaneously rises and sets at 180°
		(due south); at the vernal and autumnal equinoxes, it rises and sets at 90° and 180° (due east and
		and west); and at summer solstice, it simultaneously sets and rises at 0° (due north)
4	Local Noon and Solar Altitude
		This is the time when the sun is at its highest in the sky. In the northern hemisphere, this must
		always occur when the sun is directly south of the viewer. But how far above the horizon? The
		answer is found in the term Solar Altitude. Note how low this number is for midwinter: this is what
		helps make for such murky Arctic winters. Also, the highest in the sky the sun ever occurs is at
		noon on summer solstice. For Paxson's latitude, that is 50°24´ - or barely halfway between the
		horizon and straight up (that would be 45°). Thus, even though our summer skies are filled with
		sun, it is not a strong sun. Also, the low angle the sun travels throughout the summer days
		delights photographers with the warm colors such an angle produces.
		The reason local noon is not 12:00 is because of distortions introduced by time zones. Daylight
		Saving Time offsets local noon by another hour.
	Copyright © 2002 by Denali Highway Cabins & Tours. All rights reserved. Do not copy without permission.