The dark sky table shows the Pacific Standard Time (PST) 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

 3- 1          17:58SS         19:37TE  0:50MS  5: 5TS          6:46SR 10:36MR  4:15VT 
 3- 2          17:58SS         19:38TE  1:58MS  5: 4TS          6:45SR 11:18MR  3: 5VT 
 3- 3          18: 0SS         19:40TE  3: 5MS  5: 3TS          6:43SR          1:57VT 
 3- 4  12:10MR 18: 1SS         19:42TE  4: 7MS  5: 1TS          6:40SR          0:53VT 
 3- 5  13:13MR 18: 2SS         19:43TE          4:58TS  5: 3MS  6:39SR          0: 0VT 
 3- 6  14:25MR 18: 4SS         19:45TE          4:56TS  5:48MS  6:37SR          0: 0VT 
 3- 7  15:43MR 18: 6SS         19:46TE          4:55TS  6:26MS  6:34SR          0: 0VT 
 3- 8  17: 2MR 18: 7SS         19:47TE          4:52TS          6:34SR  7: 0MS  0: 0VT 
 3- 9          18: 7SS 18:22MR 19:49TE          4:50TS          6:31SR  7:28MS  0: 0VT 
 3-10          18:10SS 19:40MR 19:49TE          4:49TS          6:30SR  7:55MS  0: 0VT 
 3-11          18:10SS         19:52TE 20:55MR  4:48TS          6:28SR  8:22MS  1: 2VT 
 3-12          18:13SS         19:52TE 22: 7MR  4:46TS          6:25SR  8:51MS  2:14VT 
 3-13          18:13SS         19:55TE 23:17MR  4:43TS          6:24SR  9:22MS  3:22VT 
 3-14          18:15SS         19:55TE  0:25MR  4:41TS          6:22SR  9:56MS  4:29VT 
 3-15          18:16SS         19:57TE  1:28MR  4:40TS          6:19SR 10:34MS  5:30VT 
 3-16          18:17SS         19:58TE  2:25MR  4:37TS          6:18SR 11:19MS  6:26VT 
 3-17          18:19SS         20: 0TE  3:16MR  4:35TS          6:16SR          7:16VT 
 3-18  12:10MS 18:19SS         20: 1TE  4: 0MR  4:34TS          6:15SR          7:58VT 
 3-19  13: 6MS 18:22SS         20: 2TE          4:31TS  4:37MR  6:13SR          8:29VT 
 3-20  14: 4MS 18:22SS         20: 4TE          4:30TS  5:10MR  6:10SR          8:25VT 
 3-21  15: 6MS 18:23SS         20: 6TE          4:26TS  5:37MR  6: 9SR          8:20VT 
 3-22  16: 7MS 18:25SS         20: 7TE          4:25TS  6: 3MR  6: 7SR          8:17VT 
 3-23  17:10MS 18:27SS         20: 8TE          4:22TS          6: 4SR  6:25MR  8:14VT 
 3-24  18:15MS 18:28SS         20:10TE          4:20TS          6: 3SR  6:49MR  8:10VT 
 3-25          18:30SS 19:19MS 20:12TE          4:19TS          6: 1SR  7:11MR  8: 7VT 
 3-26          18:31SS         20:13TE 20:25MS  4:16TS          5:58SR  7:37MR  7:51VT 
 3-27          18:31SS         20:15TE 21:32MS  4:15TS          5:58SR  8: 3MR  6:42VT 
 3-28          18:34SS         20:16TE 22:43MS  4:13TS          5:55SR  8:37MR  5:29VT 
 3-29          18:34SS         20:17TE 23:52MS  4:10TS          5:54SR  9:15MR  4:18VT 
 3-30          18:36SS         20:19TE  0:58MS  4: 9TS          5:52SR 10: 3MR  3:10VT 
 3-31          18:37SS         20:21TE  2: 1MS  4: 5TS          5:49SR 11: 1MR  2: 4VT

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