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

 9- 1  14:55MS 19:47SS         21:34TE 23:34MR  4:46TS          6:33SR          2: 0VT 
 9- 2  15:52MS 19:46SS         21:31TE  0:35MR  4:48TS          6:34SR          3: 3VT 
 9- 3  16:38MS 19:43SS         21:28TE  1:45MR  4:49TS          6:34SR          4:16VT 
 9- 4  17:25MS 19:42SS         21:27TE  3: 2MR  4:50TS          6:37SR          5:35VT 
 9- 5  18: 0MS 19:40SS         21:25TE  4:24MR  4:52TS          6:37SR          6:58VT 
 9- 6  18:30MS 19:37SS         21:22TE          4:54TS  5:46MR  6:39SR          7:31VT 
 9- 7  18:57MS 19:37SS         21:21TE          4:55TS          6:40SR  7: 7MR  7:34VT 
 9- 8  19:22MS 19:34SS         21:19TE          4:56TS          6:40SR  8:30MR  7:37VT 
 9- 9          19:32SS 19:49MS 21:16TE          4:58TS          6:43SR  9:51MR  7:42VT 
 9-10          19:31SS 20:17MS 21:13TE          5: 0TS          6:43SR 11:10MR  7:46VT 
 9-11          19:28SS 20:51MS 21:12TE          5: 1TS          6:45SR          7:49VT 
 9-12  12:25MR 19:27SS         21:10TE 21:30MS  5: 3TS          6:46SR          7:33VT 
 9-13  13:34MR 19:25SS         21: 7TE 22:16MS  5: 4TS          6:48SR          6:48VT 
 9-14  14:34MR 19:22SS         21: 6TE 23: 8MS  5: 5TS          6:49SR          5:57VT 
 9-15  15:25MR 19:21SS         21: 4TE  0: 7MS  5: 7TS          6:49SR          5: 0VT 
 9-16  16: 6MR 19:19SS         21: 1TE  1:10MS  5: 9TS          6:50SR          3:58VT 
 9-17  16:38MR 19:16SS         20:58TE  2:13MS  5:10TS          6:52SR          2:56VT 
 9-18  17: 7MR 19:15SS         20:57TE  3:17MS  5:11TS          6:54SR          1:53VT 
 9-19  17:31MR 19:13SS         20:55TE  4:19MS  5:13TS          6:55SR          0:53VT 
 9-20  17:51MR 19:10SS         20:52TE          5:13TS  5:22MS  6:55SR          0: 0VT 
 9-21  18:10MR 19:10SS         20:51TE          5:16TS  6:24MS  6:56SR          0: 0VT 
 9-22  18:31MR 19: 7SS         20:49TE          5:16TS          6:58SR  7:26MS  0: 0VT 
 9-23  18:51MR 19: 6SS         20:46TE          5:18TS          7: 0SR  8:30MS  0: 0VT 
 9-24          19: 4SS 19:13MR 20:45TE          5:19TS          7: 1SR  9:33MS  0: 0VT 
 9-25          19: 1SS 19:37MR 20:43TE          5:20TS          7: 1SR 10:38MS  0: 0VT 
 9-26          19: 0SS 20: 7MR 20:40TE          5:22TS          7: 4SR 11:45MS  0: 0VT 
 9-27          18:58SS         20:38TE 20:45MR  5:24TS          7: 4SR          0: 6VT 
 9-28  12:46MS 18:55SS         20:37TE 21:30MR  5:25TS          7: 5SR          0:52VT 
 9-29  13:45MS 18:53SS         20:34TE 22:25MR  5:26TS          7: 7SR          1:51VT 
 9-30  14:36MS 18:52SS         20:32TE 23:31MR  5:28TS          7: 9SR          2:58VT 

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