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  13:34MS 17:58SS         19:37TE  5: 3MR  5: 5TS          6:46SR          9:25VT 
 3- 2  14:31MS 17:58SS         19:40TE          5: 4TS  5:41MR  6:43SR          9:23VT 
 3- 3  15:33MS 18: 1SS         19:40TE          5: 1TS  6:16MR  6:41SR          9:21VT 
 3- 4  16:34MS 18: 1SS         19:42TE          5: 0TS          6:40SR  6:46MR  9:17VT 
 3- 5  17:40MS 18: 2SS         19:43TE          4:58TS          6:39SR  7:16MR  9:14VT 
 3- 6          18: 4SS 18:47MS 19:45TE          4:56TS          6:37SR  7:43MR  9:11VT 
 3- 7          18: 6SS         19:46TE 19:57MS  4:55TS          6:34SR  8:10MR  8:57VT 
 3- 8          18: 7SS         19:47TE 21: 7MS  4:52TS          6:33SR  8:38MR  7:45VT 
 3- 9          18: 8SS         19:49TE 22:17MS  4:50TS          6:31SR  9:10MR  6:33VT 
 3-10          18:10SS         19:51TE 23:30MS  4:49TS          6:28SR  9:45MR  5:19VT 
 3-11          18:12SS         19:52TE  0:40MS  4:46TS          6:26SR 10:25MR  4: 5VT 
 3-12          18:13SS         19:53TE  1:49MS  4:45TS          6:25SR 11:15MR  2:55VT 
 3-13          18:13SS         19:55TE  2:52MS  4:43TS          6:24SR          1:50VT 
 3-14  12:11MR 18:16SS         19:55TE  3:49MS  4:40TS          6:22SR          0:51VT 
 3-15  13:16MR 18:16SS         19:58TE  4:37MS  4:39TS          6:19SR          0: 1VT 
 3-16  14:26MR 18:17SS         19:58TE          4:37TS  5:19MS  6:18SR          0: 0VT 
 3-17  15:38MR 18:19SS         20: 1TE          4:34TS  5:52MS  6:16SR          0: 0VT 
 3-18  16:51MR 18:21SS         20: 1TE          4:33TS          6:13SR  6:24MS  0: 0VT 
 3-19  18: 1MR 18:22SS         20: 4TE          4:31TS          6:11SR  6:52MS  0: 0VT 
 3-20          18:22SS 19:10MR 20: 4TE          4:28TS          6:10SR  7:18MS  0: 0VT 
 3-21          18:25SS         20: 6TE 20:17MR  4:26TS          6: 9SR  7:45MS  0:11VT 
 3-22          18:25SS         20: 7TE 21:23MR  4:25TS          6: 7SR  8:12MS  1:16VT 
 3-23          18:27SS         20: 8TE 22:27MR  4:22TS          6: 4SR  8:42MS  2:18VT 
 3-24          18:28SS         20:10TE 23:28MR  4:20TS          6: 3SR  9:15MS  3:17VT 
 3-25          18:30SS         20:12TE  0:28MR  4:19TS          6: 1SR  9:53MS  4:15VT 
 3-26          18:31SS         20:13TE  1:22MR  4:16TS          5:58SR 10:36MS  5: 9VT 
 3-27          18:32SS         20:15TE  2:13MR  4:13TS          5:56SR 11:23MS  5:58VT 
 3-28          18:34SS         20:16TE  2:58MR  4:11TS          5:55SR          6:42VT 
 3-29  12:18MS 18:34SS         20:17TE  3:39MR  4:10TS          5:52SR          7:21VT 
 3-30  13:16MS 18:36SS         20:19TE          4: 7TS  4:15MR  5:50SR          7:48VT 
 3-31  14:19MS 18:37SS         20:21TE          4: 5TS  4:46MR  5:49SR          7:44VT

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