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DARK SKY INDEX - New

2016 Dark Sky Observing Time PST

The dark sky table shows the 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.

DARKSKY- Dave Heider 3/92   Site-Portland
Portland, Oregon, U.S.A. (Longitude: West 122.68 degrees & Latitude: North 45.52 degrees)
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
 1- 1          16:37SS         18:23TE  0:28MR  6: 4TS          7:50SR          6: 5VT 
 1- 2  12:11MS 16:37SS         18:25TE  1:28MR  6: 4TS          7:50SR          7: 2VT 
 1- 3  12:40MS 16:38SS         18:25TE  2:25MR  6: 4TS          7:49SR          8: 0VT 
 1- 4  13:10MS 16:40SS         18:27TE  3:25MR  6: 4TS          7:49SR          8:58VT 
 1- 5  13:43MS 16:40SS         18:28TE  4:25MR  6: 4TS          7:49SR          9:56VT 
 1- 6  14:22MS 16:42SS         18:28TE  5:22MR  6: 4TS          7:49SR         10:54VT 
 1- 7  15: 7MS 16:43SS         18:30TE          6: 3TS  6:19MR  7:49SR         11:33VT 
 1- 8  15: 6MS 16:43SS         18:31TE          6: 3TS  7:10MR  7:49SR         11:31VT 
 1- 9          16:45SS 16:58MS 18:31TE          6: 3TS          7:49SR  7:58MR 11:31VT 
 1-10          16:46SS 18: 1MS 18:32TE          6: 3TS          7:49SR  8:41MR 11:30VT 
 1-11          16:47SS         18:34TE 19:10MS  6: 3TS          7:48SR  9:18MR 10:52VT 
 1-12          16:49SS         18:34TE 20:21MS  6: 1TS          7:48SR  9:53MR  9:40VT 
 1-13          16:49SS         18:36TE 21:31MS  6: 1TS          7:46SR 10:28MR  8:30VT 
 1-14          16:51SS         18:37TE 22:43MS  6: 1TS          7:46SR 11: 0MR  7:18VT 
 1-15          16:52SS         18:37TE 23:55MS  6: 1TS          7:46SR 11:33MR  6: 5VT 
 1-16          16:53SS         18:38TE  1: 6MS  6: 1TS          7:46SR          4:55VT 
 1-17  12: 7MR 16:55SS         18:40TE  2:16MS  6: 0TS          7:45SR          3:43VT 
 1-18  12:46MR 16:57SS         18:42TE  3:24MS  6: 0TS          7:43SR          2:35VT 
 1-19  13:30MR 16:58SS         18:43TE  4:28MS  5:58TS          7:43SR          1:30VT 
 1-20  14:19MR 16:58SS         18:43TE  5:26MS  5:58TS          7:43SR          0:31VT 
 1-21  15:13MR 17: 1SS         18:45TE          5:58TS  6:19MS  7:41SR          0: 0VT 
 1-22  16:10MR 17: 1SS         18:46TE          5:56TS  7: 5MS  7:40SR          0: 0VT 
 1-23          17: 2SS 17:12MR 18:47TE          5:55TS          7:40SR  7:46MS  0: 0VT 
 1-24          17: 4SS 18:13MR 18:49TE          5:55TS          7:39SR  8:21MS  0: 0VT 
 1-25          17: 6SS         18:49TE 19:16MR  5:55TS          7:37SR  8:52MS  0:26VT 
 1-26          17: 7SS         18:51TE 20:16MR  5:54TS          7:37SR  9:19MS  1:25VT 
 1-27          17: 8SS         18:52TE 21:16MR  5:52TS          7:35SR  9:48MS  2:24VT 
 1-28          17:10SS         18:53TE 22:16MR  5:52TS          7:34SR 10:13MS  3:22VT 
 1-29          17:12SS         18:55TE 23:15MR  5:50TS          7:34SR 10:40MS  4:19VT 
 1-30          17:13SS         18:55TE  0:13MR  5:49TS          7:33SR 11:10MS  5:17VT 
 1-31          17:15SS         18:58TE  1:10MR  5:49TS          7:31SR 11:41MS  6:12VT 

Portland, Oregon, U.S.A. (Longitude: West 122.68 degrees & Latitude: North 45.52 degrees)
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
 2- 1          17:16SS         18:58TE  2:10MR  5:48TS          7:31SR          7:11VT 
 2- 2  12:18MS 17:17SS         19: 0TE  3: 7MR  5:46TS          7:28SR          8: 7VT 
 2- 3  12:58MS 17:19SS         19: 1TE  4: 4MR  5:46TS          7:28SR          9: 2VT 
 2- 4  13:46MS 17:21SS         19: 2TE  4:58MR  5:45TS          7:26SR          9:55VT 
 2- 5  14:40MS 17:22SS         19: 4TE          5:43TS  5:48MR  7:25SR         10:39VT 
 2- 6  15:45MS 17:23SS         19: 6TE          5:41TS  6:33MR  7:24SR         10:35VT 
 2- 7  16:49MS 17:25SS         19: 7TE          5:40TS  7:15MR  7:22SR         10:33VT 
 2- 8          17:27SS 18: 1MS 19: 7TE          5:40TS          7:20SR  7:52MR 10:32VT 
 2- 9          17:28SS         19:10TE 19:15MS  5:39TS          7:19SR  8:27MR 10:23VT 
 2-10          17:28SS         19:10TE 20:28MS  5:37TS          7:19SR  9: 2MR  9: 8VT 
 2-11          17:31SS         19:12TE 21:42MS  5:35TS          7:16SR  9:36MR  7:53VT 
 2-12          17:31SS         19:13TE 22:55MS  5:34TS          7:16SR 10:10MR  6:38VT 
 2-13          17:34SS         19:15TE  0: 7MS  5:33TS          7:13SR 10:49MR  5:26VT 
 2-14          17:34SS         19:16TE  1:16MS  5:31TS          7:13SR 11:30MR  4:15VT 
 2-15          17:37SS         19:17TE  2:20MS  5:30TS          7:10SR          3: 9VT 
 2-16  12:16MR 17:37SS         19:19TE  3:20MS  5:28TS          7: 9SR          2: 7VT 
 2-17  13: 7MR 17:40SS         19:21TE  4:15MS  5:26TS          7: 7SR          1:11VT 
 2-18  14: 3MR 17:40SS         19:22TE  5: 3MS  5:25TS          7: 5SR          0:22VT 
 2-19  15: 1MR 17:43SS         19:22TE          5:24TS  5:43MS  7: 4SR          0: 0VT 
 2-20  16: 2MR 17:43SS         19:25TE          5:22TS  6:19MS  7: 3SR          0: 0VT 
 2-21  17: 4MR 17:45SS         19:25TE          5:20TS  6:52MS  7: 1SR          0: 0VT 
 2-22          17:46SS 18: 6MR 19:27TE          5:19TS          7: 0SR  7:22MS  0: 0VT 
 2-23          17:47SS 19: 6MR 19:28TE          5:18TS          6:58SR  7:49MS  0: 0VT 
 2-24          17:49SS         19:30TE 20: 4MR  5:16TS          6:55SR  8:17MS  0:34VT 
 2-25          17:51SS         19:31TE 21: 4MR  5:13TS          6:54SR  8:42MS  1:32VT 
 2-26          17:52SS         19:32TE 22: 2MR  5:13TS          6:52SR  9:11MS  2:30VT 
 2-27          17:53SS         19:34TE 23: 1MR  5:10TS          6:50SR  9:41MS  3:27VT 
 2-28          17:55SS         19:36TE 23:58MR  5: 9TS          6:49SR 10:15MS  4:22VT 
 2-29          17:57SS         19:37TE  0:55MR  5: 7TS          6:46SR 10:52MS  5:17VT 

Portland, Oregon, U.S.A. (Longitude: West 122.68 degrees & Latitude: North 45.52 degrees)
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
 3- 1          17:58SS         19:37TE  1:51MR  5: 5TS          6:46SR 11:37MS  6:13VT 
 3- 2          17:58SS         19:40TE  2:45MR  5: 4TS          6:43SR          7: 4VT 
 3- 3  12:26MS 18: 1SS         19:40TE  3:34MR  5: 1TS          6:41SR          7:54VT 
 3- 4  13:23MS 18: 1SS         19:43TE  4:22MR  5: 0TS          6:40SR          8:38VT 
 3- 5  14:26MS 18: 4SS         19:43TE          4:58TS  5: 4MR  6:37SR          9:14VT 
 3- 6  15:37MS 18: 4SS         19:45TE          4:55TS  5:45MR  6:37SR          9:10VT 
 3- 7  16:47MS 18: 6SS         19:46TE          4:55TS  6:22MR  6:34SR          9: 8VT 
 3- 8  18: 2MS 18: 7SS         19:47TE          4:52TS          6:33SR  6:56MR  9: 5VT 
 3- 9          18: 8SS 19:19MS 19:49TE          4:50TS          6:31SR  7:31MR  9: 1VT 
 3-10          18:10SS         19:51TE 20:36MS  4:49TS          6:28SR  8: 7MR  8:13VT 
 3-11          18:12SS         19:52TE 21:51MS  4:46TS          6:26SR  8:47MR  6:55VT 
 3-12          18:13SS         19:53TE 23: 4MS  4:45TS          6:25SR  9:27MR  5:40VT 
 3-13          18:13SS         19:55TE  0:12MS  4:43TS          6:22SR 10:13MR  4:31VT 
 3-14          18:16SS         19:57TE  1:16MS  4:40TS          6:22SR 11: 4MR  3:24VT 
 3-15          18:16SS         19:58TE  2:12MS  4:39TS          6:19SR 11:58MR  2:27VT 
 3-16          18:17SS         19:58TE  3: 1MS  4:37TS          6:18SR          1:35VT 
 3-17  12:56MR 18:19SS         20: 1TE  3:43MS  4:34TS          6:16SR          0:50VT 
 3-18  13:55MR 18:21SS         20: 1TE  4:22MS  4:33TS          6:13SR          0:11VT 
 3-19  14:56MR 18:22SS         20: 4TE          4:31TS  4:55MS  6:11SR          0: 0VT 
 3-20  15:56MR 18:23SS         20: 4TE          4:28TS  5:25MS  6:10SR          0: 0VT 
 3-21  16:57MR 18:25SS         20: 7TE          4:26TS  5:52MS  6: 7SR          0: 0VT 
 3-22  17:57MR 18:25SS         20: 7TE          4:25TS          6: 5SR  6:19MS  0: 0VT 
 3-23          18:28SS 18:55MR 20:10TE          4:22TS          6: 4SR  6:46MS  0: 0VT 
 3-24          18:28SS 19:53MR 20:10TE          4:20TS          6: 3SR  7:13MS  0: 0VT 
 3-25          18:30SS         20:13TE 20:52MR  4:18TS          6: 1SR  7:43MS  0:39VT 
 3-26          18:31SS         20:13TE 21:49MR  4:16TS          5:58SR  8:15MS  1:36VT 
 3-27          18:32SS         20:16TE 22:46MR  4:13TS          5:56SR  8:51MS  2:30VT 
 3-28          18:34SS         20:16TE 23:43MR  4:11TS          5:55SR  9:32MS  3:26VT 
 3-29          18:34SS         20:19TE  0:37MR  4:10TS          5:52SR 10:19MS  4:17VT 
 3-30          18:37SS         20:19TE  1:27MR  4: 7TS          5:50SR 11:10MS  5: 7VT 
 3-31          18:37SS         20:22TE  2:13MR  4: 5TS          5:49SR          5:51VT 

Portland, Oregon, U.S.A. (Longitude: West 122.68 degrees & Latitude: North 45.52 degrees)
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
11- 1          16:55SS 18:32MS 18:37TE          5:10TS          6:52SR  9:26MR 10:32VT 
11- 2          16:55SS         18:37TE 19:12MS  5:10TS          6:52SR 10:19MR  9:58VT 
11- 3          16:52SS         18:34TE 19:55MS  5:13TS          6:55SR 11: 7MR  9:17VT 
11- 4          16:52SS         18:34TE 20:45MS  5:13TS          6:55SR 11:53MR  8:29VT 
11- 5          16:51SS         18:32TE 21:38MS  5:15TS          6:58SR          7:36VT 
11- 6  12:36MR 16:49SS         18:31TE 22:38MS  5:16TS          6:58SR          6:37VT 
11- 7  13:13MR 16:47SS         18:31TE 23:42MS  5:18TS          7: 1SR          5:35VT 
11- 8  13:49MR 16:46SS         18:30TE  0:49MS  5:19TS          7: 1SR          4:30VT 
11- 9  14:22MR 16:46SS         18:28TE  1:58MS  5:19TS          7: 3SR          3:21VT 
11-10  14:53MR 16:45SS         18:27TE  3:10MS  5:22TS          7: 4SR          2:11VT 
11-11  15:26MR 16:43SS         18:25TE  4:25MS  5:22TS          7: 5SR          0:57VT 
11-12  16: 2MR 16:42SS         18:25TE          5:24TS  5:43MS  7: 7SR          0: 0VT 
11-13          16:40SS 16:40MR 18:25TE          5:25TS  7: 0MS  7: 9SR          0: 0VT 
11-14          16:40SS 17:23MR 18:23TE          5:26TS          7:10SR  8:15MS  0: 0VT 
11-15          16:38SS 18:13MR 18:22TE          5:28TS          7:11SR  9:25MS  0: 0VT 
11-16          16:37SS         18:22TE 19:10MR  5:28TS          7:13SR 10:25MS  0:47VT 
11-17          16:37SS         18:21TE 20:10MR  5:30TS          7:13SR 11:19MS  1:49VT 
11-18          16:36SS         18:19TE 21:15MR  5:31TS          7:16SR          2:55VT 
11-19  12: 3MS 16:34SS         18:19TE 22:21MR  5:33TS          7:16SR          4: 1VT 
11-20  12:40MS 16:34SS         18:19TE 23:25MR  5:34TS          7:18SR          5: 6VT 
11-21  13:13MS 16:34SS         18:17TE  0:28MR  5:34TS          7:19SR          6:10VT 
11-22  13:41MS 16:32SS         18:17TE  1:30MR  5:35TS          7:20SR          7:12VT 
11-23  14:10MS 16:31SS         18:16TE  2:30MR  5:37TS          7:22SR          8:13VT 
11-24  14:36MS 16:31SS         18:16TE  3:28MR  5:37TS          7:24SR          9:12VT 
11-25  15: 1MS 16:31SS         18:16TE  4:28MR  5:39TS          7:25SR         10:11VT 
11-26  15:30MS 16:30SS         18:16TE  5:25MR  5:40TS          7:25SR         11: 9VT 
11-27  16: 0MS 16:30SS         18:15TE          5:41TS  6:24MR  7:26SR         11:26VT 
11-28          16:28SS 16:34MS 18:15TE          5:43TS  7:20MR  7:28SR         11:28VT 
11-29          16:28SS 17:10MS 18:15TE          5:43TS          7:30SR  8:15MR 11:29VT 
11-30          16:28SS 17:52MS 18:13TE          5:45TS          7:31SR  9: 6MR 11:31VT 

Portland, Oregon, U.S.A. (Longitude: West 122.68 degrees & Latitude: North 45.52 degrees)
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
12- 1          16:28SS         18:13TE 18:40MS  5:46TS          7:31SR  9:53MR 11: 5VT 
12- 2          16:28SS         18:13TE 19:34MS  5:46TS          7:33SR 10:36MR 10:12VT 
12- 3          16:27SS         18:13TE 20:31MS  5:48TS          7:34SR 11:15MR  9:16VT 
12- 4          16:27SS         18:13TE 21:31MS  5:49TS          7:34SR 11:51MR  8:17VT 
12- 5          16:27SS         18:13TE 22:36MS  5:49TS          7:35SR          7:13VT 
12- 6  12:22MR 16:27SS         18:13TE 23:42MS  5:49TS          7:37SR          6: 7VT 
12- 7  12:55MR 16:27SS         18:13TE  0:51MS  5:50TS          7:37SR          5: 0VT 
12- 8  13:25MR 16:27SS         18:13TE  2: 1MS  5:52TS          7:39SR          3:50VT 
12- 9  13:58MR 16:25SS         18:13TE  3:16MS  5:52TS          7:40SR          2:36VT 
12-10  14:33MR 16:25SS         18:13TE  4:31MS  5:54TS          7:40SR          1:22VT 
12-11  15:11MR 16:27SS         18:13TE  5:46MS  5:55TS          7:41SR          0: 9VT 
12-12  16: 1MR 16:27SS         18:13TE          5:55TS  6:58MS  7:43SR          0: 0VT 
12-13          16:27SS 16:49MR 18:13TE          5:55TS          7:43SR  8: 7MS  0: 0VT 
12-14          16:27SS 17:49MR 18:13TE          5:56TS          7:43SR  9: 6MS  0: 0VT 
12-15          16:27SS         18:15TE 18:53MR  5:56TS          7:45SR  9:56MS  0:38VT 
12-16          16:27SS         18:15TE 20: 1MR  5:58TS          7:45SR 10:37MS  1:46VT 
12-17          16:28SS         18:15TE 21: 8MR  5:58TS          7:46SR 11:13MS  2:53VT 
12-18          16:28SS         18:16TE 22:15MR  5:58TS          7:46SR 11:45MS  3:58VT 
12-19          16:28SS         18:16TE 23:17MR  6: 0TS          7:46SR          5: 1VT 
12-20  12:13MS 16:28SS         18:16TE  0:19MR  6: 0TS          7:48SR          6: 3VT 
12-21  12:40MS 16:30SS         18:16TE  1:21MR  6: 1TS          7:48SR          7: 4VT 
12-22  13: 7MS 16:30SS         18:17TE  2:19MR  6: 1TS          7:49SR          8: 2VT 
12-23  13:34MS 16:31SS         18:17TE  3:17MR  6: 1TS          7:49SR          9: 0VT 
12-24  14: 3MS 16:31SS         18:19TE  4:16MR  6: 1TS          7:49SR          9:56VT 
12-25  14:34MS 16:31SS         18:19TE  5:13MR  6: 1TS          7:49SR         10:54VT 
12-26  15:10MS 16:32SS         18:19TE          6: 3TS  6: 9MR  7:49SR         11:43VT 
12-27  15:53MS 16:32SS         18:21TE          6: 3TS  7: 1MR  7:49SR         11:41VT 
12-28          16:34SS 16:37MS 18:21TE          6: 3TS          7:49SR  7:50MR 11:41VT 
12-29          16:34SS 17:28MS 18:22TE          6: 3TS          7:49SR  8:37MR 11:40VT 
12-30          16:36SS         18:22TE 18:25MS  6: 3TS          7:50SR  9:17MR 11:37VT 
12-31          16:37SS         18:23TE 19:25MS  6: 4TS          7:50SR  9:53MR 10:38VT 

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.