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

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

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