The dark sky table shows the Pacific Daylight Saving Time (PDT) 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

 9- 1  18:28MR 19:46SS         21:32TE  4:31MS  4:46TS          6:33SR          0:15VT 
 9- 2  18:49MR 19:45SS         21:31TE          4:49TS  5:37MS  6:34SR          0: 0VT 
 9- 3  19: 8MR 19:43SS         21:28TE          4:49TS          6:35SR  6:41MS  0: 0VT 
 9- 4  19:28MR 19:42SS         21:27TE          4:52TS          6:37SR  7:48MS  0: 0VT 
 9- 5          19:40SS 19:46MR 21:25TE          4:52TS          6:37SR  8:55MS  0: 0VT 
 9- 6          19:37SS 20: 6MR 21:22TE          4:55TS          6:39SR 10: 4MS  0: 0VT 
 9- 7          19:36SS 20:28MR 21:19TE          4:55TS          6:40SR 11:16MS  0: 0VT 
 9- 8          19:34SS 20:55MR 21:17TE          4:58TS          6:41SR          0: 0VT 
 9- 9  12:28MS 19:31SS         21:16TE 21:30MR  4:58TS          6:43SR          0:13VT 
 9-10  13:40MS 19:30SS         21:13TE 22:13MR  5: 1TS          6:43SR          0:59VT 
 9-11  14:46MS 19:28SS         21:12TE 23: 8MR  5: 1TS          6:45SR          1:56VT 
 9-12  15:46MS 19:25SS         21: 8TE  0:16MR  5: 3TS          6:46SR          3: 7VT 
 9-13  16:32MS 19:25SS         21: 7TE  1:31MR  5: 4TS          6:48SR          4:24VT 
 9-14  17:12MS 19:22SS         21: 4TE  2:52MR  5: 5TS          6:49SR          5:48VT 
 9-15  17:42MS 19:21SS         21: 2TE  4:15MR  5: 7TS          6:49SR          7:12VT 
 9-16  18: 7MS 19:19SS         21: 1TE          5: 9TS  5:34MR  6:50SR          8: 7VT 
 9-17  18:31MS 19:16SS         20:58TE          5:10TS          6:52SR  6:52MR  8:12VT 
 9-18  18:53MS 19:15SS         20:57TE          5:11TS          6:54SR  8:11MR  8:14VT 
 9-19          19:13SS 19:16MS 20:55TE          5:13TS          6:55SR  9:26MR  8:17VT 
 9-20          19:10SS 19:42MS 20:52TE          5:15TS          6:55SR 10:41MR  8:22VT 
 9-21          19: 8SS 20:10MS 20:49TE          5:16TS          6:58SR 11:52MR  8:26VT 
 9-22          19: 7SS 20:45MS 20:47TE          5:16TS          6:58SR          8:29VT 
 9-23  13: 0MR 19: 4SS         20:46TE 21:25MS  5:19TS          7: 0SR          7:53VT 
 9-24  13:58MR 19: 2SS         20:43TE 22:15MS  5:19TS          7: 1SR          7: 4VT 
 9-25  14:49MR 19: 1SS         20:42TE 23:10MS  5:22TS          7: 3SR          6:11VT 
 9-26  15:30MR 18:58SS         20:40TE  0:10MS  5:22TS          7: 4SR          5:11VT 
 9-27  16: 2MR 18:58SS         20:37TE  1:15MS  5:24TS          7: 4SR          4: 9VT 
 9-28  16:30MR 18:55SS         20:36TE  2:19MS  5:25TS          7: 5SR          3: 5VT 
 9-29  16:52MR 18:53SS         20:34TE  3:25MS  5:26TS          7: 7SR          2: 1VT 
 9-30  17:13MR 18:52SS         20:31TE  4:30MS  5:28TS          7: 9SR          0:58VT 

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.

© 1998-2008 David Haworth