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  19:23MS 19:46SS         21:32TE          4:46TS  5:13MR  6:33SR          7:14VT 
 9- 2  19:43MS 19:46SS         21:31TE          4:49TS  6:19MR  6:34SR          7:17VT 
 9- 3          19:43SS 20: 0MS 21:28TE          4:49TS          6:35SR  7:25MR  7:21VT 
 9- 4          19:42SS 20:16MS 21:27TE          4:52TS          6:37SR  8:30MR  7:24VT 
 9- 5          19:40SS 20:31MS 21:25TE          4:52TS          6:37SR  9:37MR  7:27VT 
 9- 6          19:37SS 20:47MS 21:22TE          4:55TS          6:39SR 10:46MR  7:32VT 
 9- 7          19:36SS 21: 6MS 21:19TE          4:55TS          6:40SR 11:56MR  7:36VT 
 9- 8          19:34SS         21:17TE 21:28MS  4:58TS          6:41SR          7:29VT 
 9- 9  13:11MR 19:31SS         21:16TE 21:58MS  4:58TS          6:43SR          7: 0VT 
 9-10  14:26MR 19:30SS         21:13TE 22:36MS  5: 0TS          6:43SR          6:23VT 
 9-11  15:38MR 19:28SS         21:12TE 23:28MS  5: 1TS          6:45SR          5:33VT 
 9-12  16:34MR 19:27SS         21: 8TE  0:36MS  5: 3TS          6:46SR          4:27VT 
 9-13  17:31MR 19:25SS         21: 7TE  1:55MS  5: 4TS          6:48SR          3: 9VT 
 9-14  18: 8MR 19:22SS         21: 4TE  3:19MS  5: 5TS          6:49SR          1:46VT 
 9-15  18:37MR 19:21SS         21: 2TE  4:46MS  5: 7TS          6:49SR          0:21VT 
 9-16  19: 1MR 19:19SS         21: 1TE          5: 9TS  6:10MS  6:50SR          0: 0VT 
 9-17          19:16SS 19:22MR 20:58TE          5:10TS          6:52SR  7:33MS  0: 0VT 
 9-18          19:15SS 19:42MR 20:57TE          5:11TS          6:54SR  8:52MS  0: 0VT 
 9-19          19:13SS 20: 1MR 20:55TE          5:13TS          6:55SR 10:11MS  0: 0VT 
 9-20          19:10SS 20:23MR 20:52TE          5:15TS          6:55SR 11:30MS  0: 0VT 
 9-21          19: 8SS 20:49MR 20:49TE          5:16TS          6:58SR          0: 0VT 
 9-22  12:46MS 19: 7SS         20:47TE 21:21MR  5:16TS          6:58SR          0:33VT 
 9-23  13:55MS 19: 4SS         20:46TE 22: 0MR  5:19TS          7: 0SR          1:13VT 
 9-24  14:58MS 19: 2SS         20:43TE 22:47MR  5:19TS          7: 1SR          2: 4VT 
 9-25  15:51MS 19: 1SS         20:42TE 23:45MR  5:20TS          7: 1SR          3: 2VT 
 9-26  16:31MS 18:58SS         20:40TE  0:49MR  5:22TS          7: 4SR          4: 8VT 
 9-27  17: 4MS 18:58SS         20:37TE  1:55MR  5:24TS          7: 4SR          5:17VT 
 9-28  17:28MS 18:55SS         20:36TE  3: 1MR  5:25TS          7: 5SR          6:25VT 
 9-29  17:49MS 18:53SS         20:34TE  4: 7MR  5:26TS          7: 7SR          7:33VT 
 9-30  18: 7MS 18:52SS         20:31TE  5:13MR  5:28TS          7: 9SR          8:42VT 

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.

© 1998-2003 David Haworth