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  16:31MS 17:57SS         19:37TE          5: 7TS          6:46SR  7: 9MR  9:29VT 
 3- 2  17:38MS 17:58SS         19:38TE          5: 4TS          6:45SR  7:30MR  9:26VT 
 3- 3          18: 0SS 18:45MS 19:40TE          5: 4TS          6:43SR  7:49MR  9:23VT 
 3- 4          18: 1SS         19:40TE 19:49MS  5: 1TS          6:41SR  8: 7MR  9:12VT 
 3- 5          18: 1SS         19:43TE 20:52MS  5: 0TS          6:40SR  8:25MR  8: 7VT 
 3- 6          18: 4SS         19:43TE 21:55MS  4:58TS          6:37SR  8:45MR  7: 2VT 
 3- 7          18: 4SS         19:46TE 22:58MS  4:55TS          6:35SR  9: 6MR  5:57VT 
 3- 8          18: 6SS         19:46TE  0: 4MS  4:54TS          6:34SR  9:32MR  4:50VT 
 3- 9          18: 7SS         19:47TE  1: 8MS  4:52TS          6:33SR 10: 3MR  3:43VT 
 3-10          18: 8SS         19:49TE  2:12MS  4:49TS          6:31SR 10:41MR  2:37VT 
 3-11          18:10SS         19:51TE  3:10MS  4:48TS          6:28SR 11:31MR  1:37VT 
 3-12          18:12SS         19:52TE  4: 4MS  4:46TS          6:26SR          0:41VT 
 3-13  12:31MR 18:13SS         19:53TE          4:45TS  4:49MS  6:25SR          0: 0VT 
 3-14  13:40MR 18:15SS         19:55TE          4:43TS  5:28MS  6:22SR          0: 0VT 
 3-15  14:56MR 18:16SS         19:57TE          4:40TS  5:58MS  6:20SR          0: 0VT 
 3-16  16:16MR 18:16SS         19:58TE          4:39TS          6:19SR  6:25MS  0: 0VT 
 3-17  17:37MR 18:19SS         20: 0TE          4:37TS          6:18SR  6:50MS  0: 0VT 
 3-18          18:19SS 18:58MR 20: 1TE          4:34TS          6:16SR  7:13MS  0: 0VT 
 3-19          18:21SS         20: 2TE 20:19MR  4:33TS          6:13SR  7:37MS  0:16VT 
 3-20          18:22SS         20: 4TE 21:42MR  4:31TS          6:11SR  8: 4MS  1:37VT 
 3-21          18:23SS         20: 4TE 23: 4MR  4:28TS          6:10SR  8:36MS  2:59VT 
 3-22          18:25SS         20: 7TE  0:24MR  4:25TS          6: 7SR  9:15MS  4:16VT 
 3-23          18:25SS         20: 7TE  1:37MR  4:24TS          6: 5SR 10: 1MS  5:30VT 
 3-24          18:28SS         20:10TE  2:42MR  4:22TS          6: 4SR 10:58MS  6:31VT 
 3-25          18:28SS         20:10TE  3:34MR  4:19TS          6: 1SR          7:24VT 
 3-26  12: 3MS 18:30SS         20:13TE  4:16MR  4:18TS          6: 0SR          8: 2VT 
 3-27  13:11MS 18:31SS         20:13TE          4:16TS  4:48MR  5:58SR          8: 2VT 
 3-28  14:21MS 18:32SS         20:16TE          4:13TS  5:13MR  5:56SR          7:57VT 
 3-29  15:28MS 18:34SS         20:16TE          4:11TS  5:35MR  5:55SR          7:55VT 
 3-30  16:34MS 18:36SS         20:19TE          4:10TS          5:52SR  5:55MR  7:50VT 
 3-31  17:40MS 18:37SS         20:19TE          4: 7TS          5:50SR  6:13MR  7:48VT 

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