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  19:23MR 20:37SS         22:38TE          3:54TS  4:13MS  5:55SR          0: 0VT 
 8- 2  20: 7MR 20:37SS         22:37TE          3:55TS  5:10MS  5:56SR          0: 0VT 
 8- 3          20:34SS 20:46MR 22:34TE          3:58TS          5:58SR  6:10MS  0: 0VT 
 8- 4          20:34SS 21:16MR 22:32TE          3:58TS          5:58SR  7:10MS  0: 0VT 
 8- 5          20:31SS 21:43MR 22:31TE          4: 1TS          6: 0SR  8:12MS  0: 0VT 
 8- 6          20:31SS 22: 7MR 22:28TE          4: 3TS          6: 1SR  9:15MS  0: 0VT 
 8- 7          20:30SS         22:27TE 22:30MR  4: 4TS          6: 3SR 10:16MS  0: 2VT 
 8- 8          20:28SS         22:25TE 22:51MR  4: 7TS          6: 4SR 11:19MS  0:25VT 
 8- 9          20:27SS         22:22TE 23:12MR  4: 7TS          6: 4SR          0:49VT 
 8-10  12:22MS 20:25SS         22:21TE 23:34MR  4:10TS          6: 5SR          1:13VT 
 8-11  13:28MS 20:23SS         22:19TE  0: 1MR  4:11TS          6: 7SR          1:41VT 
 8-12  14:36MS 20:22SS         22:16TE  0:31MR  4:13TS          6: 9SR          2:14VT 
 8-13  15:46MS 20:19SS         22:15TE  1: 8MR  4:16TS          6:10SR          2:54VT 
 8-14  16:53MS 20:19SS         22:13TE  1:55MR  4:16TS          6:10SR          3:42VT 
 8-15  18: 1MS 20:16SS         22:10TE  2:55MR  4:19TS          6:11SR          4:44VT 
 8-16  18:58MS 20:16SS         22: 7TE  4: 5MR  4:20TS          6:13SR          5:58VT 
 8-17  19:49MS 20:13SS         22: 6TE          4:22TS  5:24MR  6:15SR          6:16VT 
 8-18          20:12SS 20:30MS 22: 4TE          4:24TS          6:16SR  6:46MR  6:19VT 
 8-19          20:10SS 21: 4MS 22: 1TE          4:25TS          6:16SR  8: 7MR  6:24VT 
 8-20          20: 8SS 21:34MS 22: 0TE          4:28TS          6:18SR  9:26MR  6:28VT 
 8-21          20: 7SS         21:57TE 22: 1MS  4:28TS          6:19SR 10:43MR  6:27VT 
 8-22          20: 4SS         21:55TE 22:27MS  4:31TS          6:20SR 11:58MR  6: 3VT 
 8-23          20: 4SS         21:52TE 22:53MS  4:33TS          6:22SR          5:39VT 
 8-24  13:10MR 20: 1SS         21:51TE 23:22MS  4:34TS          6:22SR          5:11VT 
 8-25  14:21MR 20: 0SS         21:49TE 23:55MS  4:35TS          6:25SR          4:40VT 
 8-26  15:26MR 19:58SS         21:46TE  0:34MS  4:37TS          6:25SR          4: 3VT 
 8-27  16:27MR 19:57SS         21:43TE  1:17MS  4:39TS          6:26SR          3:21VT 
 8-28  17:21MR 19:55SS         21:42TE  2: 7MS  4:40TS          6:28SR          2:32VT 
 8-29  18: 7MR 19:52SS         21:40TE  3: 2MS  4:41TS          6:28SR          1:38VT 
 8-30  18:46MR 19:51SS         21:37TE  4: 1MS  4:43TS          6:31SR          0:42VT 
 8-31  19:19MR 19:49SS         21:36TE          4:45TS  5: 4MS  6:31SR          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