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

10- 1  12:38MR 18:51SS         20:31TE 21:37MS  5:28TS          7: 9SR          7:51VT 
10- 2  13:38MR 18:49SS         20:28TE 22:37MS  5:30TS          7:10SR          6:52VT 
10- 3  14:28MR 18:46SS         20:27TE 23:42MS  5:31TS          7:11SR          5:49VT 
10- 4  15: 8MR 18:45SS         20:25TE  0:49MS  5:33TS          7:13SR          4:44VT 
10- 5  15:41MR 18:43SS         20:22TE  1:55MS  5:34TS          7:15SR          3:39VT 
10- 6  16:10MR 18:40SS         20:21TE  2:58MS  5:35TS          7:16SR          2:37VT 
10- 7  16:34MR 18:40SS         20:19TE  4: 1MS  5:37TS          7:16SR          1:35VT 
10- 8  16:55MR 18:37SS         20:17TE  5: 4MS  5:37TS          7:18SR          0:33VT 
10- 9  17:17MR 18:36SS         20:16TE          5:39TS  6: 5MS  7:19SR          0: 0VT 
10-10  17:40MR 18:34SS         20:13TE          5:40TS  7: 7MS  7:20SR          0: 0VT 
10-11  18: 4MR 18:31SS         20:12TE          5:41TS          7:22SR  8: 7MS  0: 0VT 
10-12          18:30SS 18:30MR 20:10TE          5:43TS          7:24SR  9:10MS  0: 0VT 
10-13          18:28SS 18:58MR 20: 8TE          5:45TS          7:25SR 10:10MS  0: 0VT 
10-14          18:27SS 19:32MR 20: 7TE          5:46TS          7:25SR 11: 7MS  0: 0VT 
10-15          18:25SS         20: 4TE 20:13MR  5:46TS          7:28SR          0: 8VT 
10-16  12: 3MS 18:22SS         20: 2TE 21: 1MR  5:49TS          7:28SR          0:58VT 
10-17  12:52MS 18:21SS         20: 1TE 21:55MR  5:49TS          7:30SR          1:53VT 
10-18  13:36MS 18:19SS         20: 0TE 22:58MR  5:50TS          7:31SR          2:58VT 
10-19  14:13MS 18:17SS         19:58TE  0: 4MR  5:52TS          7:33SR          4: 5VT 
10-20  14:46MS 18:16SS         19:57TE  1:13MR  5:54TS          7:34SR          5:16VT 
10-21  15:18MS 18:15SS         19:55TE  2:27MR  5:55TS          7:35SR          6:31VT 
10-22  15:46MS 18:13SS         19:53TE  3:42MR  5:55TS          7:37SR          7:48VT 
10-23  16:13MS 18:10SS         19:52TE  5: 0MR  5:58TS          7:37SR          9: 7VT 
10-24  16:42MS 18:10SS         19:49TE          5:58TS  6:19MR  7:40SR         10: 9VT 
10-25  17:13MS 18: 7SS         19:49TE          6: 0TS          7:40SR  7:40MR 10:10VT 
10-26  17:49MS 18: 6SS         19:46TE          6: 1TS          7:43SR  9: 0MR 10:15VT 
10-27          18: 4SS 18:32MS 19:46TE          6: 3TS          7:43SR 10:16MR 10:16VT 
10-28          18: 2SS 19:23MS 19:43TE          6: 4TS          7:45SR 11:23MR 10:20VT 
10-29          18: 1SS         19:43TE 20:22MS  6: 4TS          7:46SR          9:42VT 
10-30  12:19MR 18: 0SS         19:42TE 21:28MS  6: 7TS          7:48SR          8:38VT 
10-31  13: 4MR 17:58SS         19:40TE 22:37MS  6: 7TS          7:49SR          7:30VT 

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.

© 1998-2008 David Haworth