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

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