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

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