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          19:46SS 21:12MR 21:32TE          4:46TS          6:33SR 10:40MS  0: 0VT 
 9- 2          19:45SS 21:30MR 21:31TE          4:49TS          6:34SR 11:49MS  0: 0VT 
 9- 3          19:43SS         21:28TE 21:51MR  4:49TS          6:35SR          0:22VT 
 9- 4  13: 0MS 19:40SS         21:25TE 22:16MR  4:52TS          6:37SR          0:50VT 
 9- 5  14: 7MS 19:38SS         21:23TE 22:46MR  4:52TS          6:37SR          1:22VT 
 9- 6  15:11MS 19:37SS         21:22TE 23:22MR  4:55TS          6:39SR          2: 0VT 
 9- 7  16:10MS 19:36SS         21:19TE  0: 9MR  4:55TS          6:40SR          2:49VT 
 9- 8  17: 1MS 19:34SS         21:17TE  1: 4MR  4:58TS          6:41SR          3:46VT 
 9- 9  17:43MS 19:31SS         21:15TE  2: 5MR  4:58TS          6:43SR          4:50VT 
 9-10  18:16MS 19:30SS         21:13TE  3:13MR  5: 1TS          6:43SR          5:59VT 
 9-11  18:45MS 19:28SS         21:10TE  4:22MR  5: 1TS          6:46SR          7:12VT 
 9-12  19: 7MS 19:25SS         21: 8TE          5: 4TS  5:34MR  6:46SR          7:55VT 
 9-13          19:23SS 19:27MS 21: 7TE          5: 4TS  6:45MR  6:48SR          7:57VT 
 9-14          19:22SS 19:45MS 21: 4TE          5: 7TS          6:49SR  7:55MR  8: 2VT 
 9-15          19:19SS 20: 2MS 21: 2TE          5: 7TS          6:49SR  9: 8MR  8: 5VT 
 9-16          19:17SS 20:22MS 21: 0TE          5: 9TS          6:52SR 10:25MR  8: 8VT 
 9-17          19:16SS 20:43MS 20:58TE          5:10TS          6:52SR 11:43MR  8:12VT 
 9-18          19:13SS         20:55TE 21:10MS  5:11TS          6:54SR          8: 1VT 
 9-19  13: 3MR 19:13SS         20:53TE 21:43MS  5:13TS          6:55SR          7:30VT 
 9-20  14:19MR 19:10SS         20:52TE 22:28MS  5:15TS          6:56SR          6:46VT 
 9-21  15:31MR 19: 8SS         20:49TE 23:27MS  5:16TS          6:58SR          5:48VT 
 9-22  16:28MR 19: 7SS         20:47TE  0:38MS  5:18TS          6:58SR          4:40VT 
 9-23  17:15MR 19: 4SS         20:46TE  1:57MS  5:19TS          7: 0SR          3:22VT 
 9-24  17:49MR 19: 2SS         20:43TE  3:17MS  5:19TS          7: 1SR          2: 1VT 
 9-25  18:16MR 19: 1SS         20:42TE  4:37MS  5:22TS          7: 3SR          0:45VT 
 9-26  18:37MR 18:58SS         20:40TE          5:22TS  5:52MS  7: 4SR          0: 0VT 
 9-27          18:57SS 18:57MR 20:37TE          5:24TS          7: 4SR  7: 7MS  0: 0VT 
 9-28          18:55SS 19:15MR 20:36TE          5:25TS          7: 7SR  8:18MS  0: 0VT 
 9-29          18:52SS 19:32MR 20:34TE          5:26TS          7: 7SR  9:30MS  0: 0VT 
 9-30          18:51SS 19:52MR 20:31TE          5:28TS          7: 9SR 10:41MS  0: 0VT 

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