The dark sky table shows the Pacific Daylight Saving Time (PDT) 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

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

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.

© 1998-2008 David Haworth