March 2008 Dark Sky Observing Time

The dark sky table shows the Pacific Daylight Saving Time (PDT) times and 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          17:58SS         19:37TE  4:15MR  5: 5TS          6:46SR          8:37VT 
 3- 2  12:22MS 17:58SS         19:40TE  4:52MR  5: 4TS          6:43SR          9:12VT 
 3- 3  13:31MS 18: 1SS         19:40TE          5: 1TS  5:24MR  6:41SR          9:21VT 
 3- 4  14:45MS 18: 1SS         19:42TE          5: 0TS  5:49MR  6:40SR          9:17VT 
 3- 5  16: 0MS 18: 4SS         19:43TE          4:58TS  6:10MR  6:39SR          9:14VT 
 3- 6  17:16MS 18: 4SS         19:45TE          4:56TS  6:31MR  6:37SR          9:11VT 
 3- 7          18: 6SS 18:32MS 19:46TE          4:55TS          6:34SR  6:49MR  9: 8VT 
 3- 8          18: 7SS         19:47TE 19:51MS  4:52TS          6:33SR  7:10MR  9: 1VT 
Pacific Daylight Saving Time (PDT) starts March 9, 2:00 am, The below times are PDT 
 3- 9          19: 8SS         20:49TE 22:10MS  5:50TS          7:31SR  8:33MR  7:40VT 
 3-10          19:10SS         20:51TE 23:32MS  5:49TS          7:28SR  9: 2MR  6:16VT 
 3-11          19:12SS         20:52TE  0:55MS  5:46TS          7:26SR  9:37MR  4:50VT 
 3-12          19:13SS         20:53TE  2:15MS  5:45TS          7:25SR 10:25MR  3:30VT 
 3-13          19:13SS         20:55TE  3:24MS  5:43TS          7:24SR 11:23MR  2:19VT 
 3-14          19:16SS         20:57TE  4:19MS  5:40TS          7:22SR          1:20VT 
 3-15  12:34MR 19:16SS         20:58TE  5: 1MS  5:39TS          7:19SR          0:37VT 
 3-16  13:49MR 19:17SS         20:58TE  5:34MS  5:37TS          7:18SR          0: 2VT 
 3-17  15: 6MR 19:19SS         21: 1TE          5:34TS  6: 0MS  7:16SR          0: 0VT 
 3-18  16:19MR 19:21SS         21: 1TE          5:33TS  6:20MS  7:13SR          0: 0VT 
 3-19  17:31MR 19:22SS         21: 4TE          5:31TS  6:39MS  7:11SR          0: 0VT 
 3-20  18:40MR 19:23SS         21: 4TE          5:28TS  6:55MS  7:10SR          0: 0VT 
 3-21          19:25SS 19:49MR 21: 7TE          5:26TS          7: 7SR  7:13MS  0: 0VT 
 3-22          19:25SS 20:55MR 21: 7TE          5:25TS          7: 7SR  7:31MS  0: 0VT 
 3-23          19:28SS         21:10TE 22: 2MR  5:22TS          7: 4SR  7:52MS  0:52VT 
 3-24          19:28SS         21:10TE 23:10MR  5:20TS          7: 3SR  8:15MS  1:59VT 
 3-25          19:30SS         21:13TE  0:16MR  5:19TS          7: 1SR  8:47MS  3: 3VT 
 3-26          19:31SS         21:13TE  1:19MR  5:16TS          6:58SR  9:25MS  4: 6VT 
 3-27          19:32SS         21:16TE  2:17MR  5:13TS          6:56SR 10:11MS  5: 1VT 
 3-28          19:34SS         21:16TE  3: 7MR  5:11TS          6:55SR 11: 8MS  5:50VT 
 3-29          19:34SS         21:19TE  3:47MR  5:10TS          6:52SR          6:28VT 
 3-30  12:13MS 19:37SS         21:19TE  4:22MR  5: 7TS          6:50SR          7: 2VT 
 3-31  13:22MS 19:37SS         21:22TE  4:49MR  5: 5TS          6:49SR          7:26VT 

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.