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  17:34MR 17:57SS         19:37TE          5: 7TS          6:46SR  7:11MS  0: 0VT 
 3- 2          17:58SS 18:40MR 19:38TE          5: 4TS          6:45SR  7:40MS  0: 0VT 
 3- 3          18: 0SS         19:40TE 19:43MR  5: 4TS          6:43SR  8: 6MS  0: 2VT 
 3- 4          18: 1SS         19:40TE 20:43MR  5: 1TS          6:41SR  8:32MS  1: 2VT 
 3- 5          18: 1SS         19:43TE 21:45MR  5: 0TS          6:40SR  8:59MS  2: 1VT 
 3- 6          18: 4SS         19:43TE 22:45MR  4:58TS          6:37SR  9:26MS  3: 1VT 
 3- 7          18: 4SS         19:45TE 23:43MR  4:55TS          6:35SR  9:59MS  3:58VT 
 3- 8          18: 6SS         19:46TE  0:40MR  4:54TS          6:34SR 10:34MS  4:54VT 
 3- 9          18: 7SS         19:47TE  1:37MR  4:52TS          6:33SR 11:13MS  5:49VT 
 3-10          18: 8SS         19:49TE  2:31MR  4:49TS          6:31SR 11:58MS  6:41VT 
 3-11          18:10SS         19:51TE  3:20MR  4:49TS          6:28SR          7:29VT 
 3-12  12:52MS 18:12SS         19:52TE  4: 7MR  4:46TS          6:26SR          8:14VT 
 3-13  13:51MS 18:13SS         19:53TE          4:45TS  4:49MR  6:25SR          8:51VT 
 3-14  14:55MS 18:13SS         19:55TE          4:43TS  5:28MR  6:22SR          8:47VT 
 3-15  16: 4MS 18:16SS         19:57TE          4:40TS  6: 3MR  6:20SR          8:43VT 
 3-16  17:15MS 18:16SS         19:58TE          4:39TS          6:19SR  6:35MR  8:40VT 
 3-17          18:17SS 18:28MS 20: 0TE          4:37TS          6:18SR  7: 7MR  8:37VT 
 3-18          18:19SS 19:43MS 20: 1TE          4:34TS          6:16SR  7:40MR  8:33VT 
 3-19          18:21SS         20: 1TE 21: 0MS  4:33TS          6:13SR  8:14MR  7:33VT 
 3-20          18:22SS         20: 4TE 22:15MS  4:31TS          6:11SR  8:52MR  6:16VT 
 3-21          18:23SS         20: 4TE 23:28MS  4:28TS          6:10SR  9:33MR  5: 0VT 
 3-22          18:25SS         20: 7TE  0:38MS  4:25TS          6: 7SR 10:21MR  3:47VT 
 3-23          18:25SS         20: 7TE  1:40MS  4:24TS          6: 5SR 11:15MR  2:43VT 
 3-24          18:28SS         20:10TE  2:37MS  4:22TS          6: 4SR          1:44VT 
 3-25  12:13MR 18:28SS         20:10TE  3:25MS  4:19TS          6: 1SR          0:54VT 
 3-26  13:16MR 18:30SS         20:13TE  4: 7MS  4:18TS          6: 0SR          0:11VT 
 3-27  14:19MR 18:31SS         20:13TE          4:16TS  4:43MS  5:58SR          0: 0VT 
 3-28  15:25MR 18:32SS         20:16TE          4:13TS  5:13MS  5:56SR          0: 0VT 
 3-29  16:28MR 18:34SS         20:16TE          4:11TS  5:41MS  5:55SR          0: 0VT 
 3-30  17:31MR 18:34SS         20:19TE          4:10TS          5:52SR  6: 7MS  0: 0VT 
 3-31  18:32MR 18:37SS         20:19TE          4: 7TS          5:50SR  6:34MS  0: 0VT 

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