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          17:57SS         19:37TE 20:34MS  5: 7TS          6:46SR  8: 3MR  8:32VT 
 3- 2          17:58SS         19:38TE 21:57MS  5: 4TS          6:45SR  8:23MR  7: 7VT 
 3- 3          18: 0SS         19:40TE 23:16MS  5: 3TS          6:43SR  8:48MR  5:46VT 
 3- 4          18: 1SS         19:42TE  0:36MS  5: 1TS          6:40SR  9:19MR  4:25VT 
 3- 5          18: 2SS         19:43TE  1:49MS  4:58TS          6:39SR  9:57MR  3: 9VT 
 3- 6          18: 4SS         19:45TE  2:55MS  4:56TS          6:37SR 10:46MR  2: 1VT 
 3- 7          18: 6SS         19:46TE  3:50MS  4:55TS          6:35SR 11:43MR  1: 4VT 
 3- 8          18: 7SS         19:46TE  4:34MS  4:54TS          6:34SR          0:19VT 
 3- 9  12:46MR 18: 7SS         19:49TE          4:52TS  5: 7MS  6:31SR          0: 0VT 
 3-10  13:52MR 18:10SS         19:49TE          4:49TS  5:34MS  6:30SR          0: 0VT 
 3-11  15: 0MR 18:10SS         19:52TE          4:48TS  5:55MS  6:28SR          0: 0VT 
 3-12  16: 6MR 18:12SS         19:52TE          4:46TS  6:11MS  6:25SR          0: 0VT 
 3-13  17:12MR 18:13SS         19:53TE          4:43TS          6:25SR  6:28MS  0: 0VT 
 3-14          18:15SS 18:16MR 19:55TE          4:41TS          6:22SR  6:43MS  0: 0VT 
 3-15          18:16SS 19:19MR 19:57TE          4:40TS          6:20SR  6:58MS  0: 0VT 
 3-16          18:17SS         19:58TE 20:25MR  4:37TS          6:19SR  7:13MS  0:26VT 
 3-17          18:19SS         20: 0TE 21:32MR  4:35TS          6:16SR  7:33MS  1:32VT 
 3-18          18:19SS         20: 1TE 22:43MR  4:34TS          6:15SR  7:55MS  2:41VT 
 3-19          18:22SS         20: 2TE 23:55MR  4:31TS          6:13SR  8:26MS  3:52VT 
 3-20          18:22SS         20: 4TE  1: 7MR  4:30TS          6:10SR  9: 6MS  5: 2VT 
 3-21          18:23SS         20: 6TE  2:13MR  4:28TS          6: 9SR 10: 0MS  6: 7VT 
 3-22          18:25SS         20: 7TE  3:10MR  4:25TS          6: 7SR 11: 7MS  7: 3VT 
 3-23          18:27SS         20: 8TE  3:57MR  4:24TS          6: 5SR          7:48VT 
 3-24  12:25MS 18:28SS         20:10TE          4:22TS  4:33MR  6: 4SR          8:11VT 
 3-25  13:49MS 18:28SS         20:12TE          4:19TS  5: 0MR  6: 1SR          8: 7VT 
 3-26  15:15MS 18:31SS         20:13TE          4:18TS  5:22MR  6: 0SR          8: 4VT 
 3-27  16:38MS 18:31SS         20:15TE          4:15TS  5:43MR  5:58SR          8: 0VT 
 3-28  18: 1MS 18:32SS         20:16TE          4:13TS          5:55SR  6: 4MR  7:56VT 
 3-29          18:34SS 19:25MS 20:17TE          4:10TS          5:54SR  6:24MR  7:53VT 
 3-30          18:36SS         20:19TE 20:47MS  4: 9TS          5:52SR  6:48MR  7:21VT 
 3-31          18:37SS         20:21TE 22:10MS  4: 7TS          5:49SR  7:16MR  5:56VT 

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