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

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

© 1998-2008 David Haworth