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          19:47SS 21:23MS 21:34TE          4:46TS          6:33SR          7:11VT 
 9- 2  12:34MR 19:46SS         21:31TE 22: 2MS  4:48TS          6:34SR          6:45VT 
 9- 3  13:46MR 19:45SS         21:30TE 22:49MS  4:49TS          6:34SR          5:59VT 
 9- 4  14:49MR 19:43SS         21:28TE 23:43MS  4:50TS          6:35SR          5: 7VT 
 9- 5  15:46MR 19:40SS         21:25TE  0:45MS  4:52TS          6:37SR          4: 7VT 
 9- 6  16:31MR 19:38SS         21:22TE  1:49MS  4:54TS          6:39SR          3: 4VT 
 9- 7  17: 7MR 19:37SS         21:21TE  2:55MS  4:55TS          6:40SR          1:59VT 
 9- 8  17:38MR 19:34SS         21:19TE  4: 1MS  4:56TS          6:40SR          0:55VT 
 9- 9  18: 6MR 19:32SS         21:16TE          4:58TS  5: 5MS  6:41SR          0: 0VT 
 9-10  18:30MR 19:31SS         21:15TE          5: 0TS  6: 9MS  6:43SR          0: 0VT 
 9-11  18:52MR 19:28SS         21:13TE          5: 1TS          6:45SR  7:11MS  0: 0VT 
 9-12  19:13MR 19:27SS         21:10TE          5: 3TS          6:46SR  8:14MS  0: 0VT 
 9-13          19:25SS 19:34MR 21: 7TE          5: 4TS          6:46SR  9:15MS  0: 0VT 
 9-14          19:23SS 19:58MR 21: 6TE          5: 5TS          6:48SR 10:16MS  0: 0VT 
 9-15          19:22SS 20:25MR 21: 4TE          5: 7TS          6:49SR 11:18MS  0: 0VT 
 9-16          19:19SS 20:55MR 21: 1TE          5: 7TS          6:50SR          0: 0VT 
 9-17  12:18MS 19:17SS         21: 0TE 21:31MR  5:10TS          6:52SR          0:31VT 
 9-18  13:15MS 19:16SS         20:58TE 22:15MR  5:10TS          6:52SR          1:16VT 
 9-19  14: 8MS 19:13SS         20:55TE 23: 6MR  5:13TS          6:55SR          2:10VT 
 9-20  14:56MS 19:12SS         20:52TE  0: 5MR  5:13TS          6:55SR          3:12VT 
 9-21  15:40MS 19:10SS         20:51TE  1:10MR  5:15TS          6:56SR          4:18VT 
 9-22  16:16MS 19: 7SS         20:49TE  2:20MR  5:16TS          6:58SR          5:31VT 
 9-23  16:48MS 19: 6SS         20:46TE  3:34MR  5:18TS          6:58SR          6:48VT 
 9-24  17:19MS 19: 4SS         20:45TE  4:52MR  5:19TS          7: 1SR          8: 7VT 
 9-25  17:47MS 19: 1SS         20:43TE          5:20TS  6:10MR  7: 1SR          8:37VT 
 9-26  18:16MS 19: 0SS         20:40TE          5:22TS          7: 3SR  7:30MR  8:41VT 
 9-27  18:46MS 18:58SS         20:38TE          5:24TS          7: 4SR  8:52MR  8:45VT 
 9-28          18:57SS 19:19MS 20:37TE          5:25TS          7: 5SR 10:11MR  8:47VT 
 9-29          18:55SS 19:58MS 20:34TE          5:25TS          7: 7SR 11:28MR  8:51VT 
 9-30          18:52SS         20:32TE 20:43MS  5:28TS          7: 7SR          8:44VT 

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