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DARK SKY INDEX
The dark sky table shows the Pacific Daylight Saving Time (PDT) times and Pacific Standard Time (PST) times for sunset, astronomical twilight ends, astronomical twilight starts, sunrise, moonrise, moonset and total moon-free, twilight-free viewing time for Portland, Oregon, U.S.A. (Longitude: West 122.68 degrees & Latitude: North 45.52 degrees). Moon-free, twilight-free viewing time is the best time to observer deep sky objects because the moon light and twilight will not interfere with observing these faint objects.
Format: ##:##SS = Sunset ##:##TE = Twilight Ends ##:##MR = Moonrise
##:##SR = Sun Rise ##:##TS = Twilight Starts ##:##MS = Moonset
##:##VT = Moon-free, Twilight-free Viewing Time
Date Sunset Twilight Ends Twilight Starts Sun Rise Viewing Time
10- 1 18:49SS 19: 1MR 20:30TE 5:28TS 7: 4MS 7:10SR 0: 0VT
10- 2 18:47SS 19:22MR 20:28TE 5:31TS 7:10SR 8: 7MS 0: 0VT
10- 3 18:46SS 19:43MR 20:25TE 5:31TS 7:13SR 9:12MS 0: 0VT
10- 4 18:43SS 20: 7MR 20:23TE 5:33TS 7:13SR 10:19MS 0: 0VT
10- 5 18:42SS 20:22TE 20:34MR 5:34TS 7:15SR 11:26MS 0:11VT
10- 6 18:40SS 20:21TE 21: 4MR 5:35TS 7:16SR 0:43VT
10- 7 12:34MS 18:38SS 20:19TE 21:43MR 5:37TS 7:18SR 1:24VT
10- 8 13:40MS 18:37SS 20:16TE 22:31MR 5:39TS 7:19SR 2:14VT
10- 9 14:40MS 18:34SS 20:15TE 23:28MR 5:40TS 7:19SR 3:13VT
10-10 15:33MS 18:32SS 20:13TE 0:36MR 5:40TS 7:22SR 4:22VT
10-11 17: 0MS 18:31SS 20:10TE 1:51MR 5:43TS 7:22SR 5:40VT
10-12 17:13MS 18:30SS 20:10TE 3: 9MR 5:43TS 7:24SR 6:58VT
10-13 17:28MS 18:28SS 20: 7TE 4:28MR 5:45TS 7:25SR 8:21VT
10-14 17:55MS 18:25SS 20: 6TE 5:46TS 5:49MR 7:26SR 9:39VT
10-15 18:22MS 18:23SS 20: 4TE 5:48TS 7: 7MR 7:28SR 9:43VT
10-16 18:22SS 18:49MS 20: 2TE 5:49TS 7:30SR 8:25MR 9:46VT
10-17 18:21SS 19:16MS 20: 1TE 5:49TS 7:31SR 9:41MR 9:48VT
10-18 18:19SS 19:47MS 19:58TE 5:52TS 7:31SR 10:55MR 9:53VT
10-19 18:16SS 19:58TE 20:22MS 5:52TS 7:34SR 9:30VT
10-20 12: 4MR 18:16SS 19:55TE 21: 2MS 5:54TS 7:34SR 8:51VT
10-21 13: 7MR 18:13SS 19:53TE 21:51MS 5:55TS 7:35SR 8: 4VT
10-22 14: 1MR 18:12SS 19:52TE 22:43MS 5:56TS 7:37SR 7:13VT
10-23 14:46MR 18:10SS 19:51TE 23:43MS 5:58TS 7:39SR 6:14VT
10-24 15:25MR 18: 8SS 19:49TE 0:42MS 5:58TS 7:40SR 5:15VT
10-25 15:55MR 18: 7SS 19:47TE 1:46MS 6: 1TS 7:41SR 4:15VT
10-26 16:22MR 18: 6SS 19:46TE 2:47MS 6: 1TS 7:43SR 3:13VT
10-27 16:45MR 18: 4SS 19:45TE 3:50MS 6: 3TS 7:45SR 2:12VT
Daylight Saving Time ends October 28, 2:00 am. The below times are PST
10-28 16: 7MR 17: 2SS 18:43TE 3:52MS 5: 4TS 6:46SR 1:12VT
10-29 16:27MR 17: 1SS 18:42TE 4:56MS 5: 5TS 6:46SR 0: 9VT
10-30 16:47MR 17: 0SS 18:40TE 5: 7TS 6: 1MS 6:49SR 0: 0VT
10-31 16:58SS 17:10MR 18:40TE 5: 7TS 6:49SR 7: 9MS 0: 0VT
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This Dark Sky table may print better in landscape orientation.
Also, when printing using Netscape check the Black Text option in the File menu, Page Setup... menu in order to print the white text.
This Dark Sky table was created by Dave Heider's Dark Sky DOS program.
Download the Dark Sky DOS program to create your own unique Dark Sky tables
for your location and time of observing.
