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DARK SKY INDEX - New

June 2002 Dark Sky Observing Time

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

 6- 1          20:52SS         23: 7TE  2: 4MR  3: 7TS          5:24SR          2:56VT 
 6- 2  12:26MS 20:52SS         23:10TE  2:25MR  3: 5TS          5:24SR          3:15VT 
 6- 3  13:30MS 20:52SS         23:10TE  2:46MR  3: 4TS          5:22SR          3:35VT 
 6- 4  14:31MS 20:53SS         23:13TE          3: 4TS  3: 4MR  5:22SR          3:50VT 
 6- 5  15:34MS 20:55SS         23:13TE          3: 2TS  3:24MR  5:22SR          3:49VT 
 6- 6  16:37MS 20:55SS         23:15TE          3: 2TS  3:45MR  5:22SR          3:47VT 
 6- 7  17:42MS 20:55SS         23:16TE          3: 1TS  4: 7MR  5:22SR          3:45VT 
 6- 8  18:49MS 20:57SS         23:16TE          3: 1TS  4:34MR  5:22SR          3:44VT 
 6- 9  19:57MS 20:58SS         23:17TE          3: 1TS  5: 7MR  5:20SR          3:43VT 
 6-10          20:58SS 21: 4MS 23:19TE          3: 0TS          5:20SR  5:49MR  3:40VT 
 6-11          20:58SS 22: 7MS 23:19TE          2:58TS          5:20SR  6:43MR  3:39VT 
 6-12          20:58SS 23: 4MS 23:21TE          2:58TS          5:20SR  7:45MR  3:37VT 
 6-13          21: 0SS         23:22TE 23:52MS  2:58TS          5:20SR  8:56MR  3: 6VT 
 6-14          21: 0SS         23:22TE  0:31MS  2:58TS          5:20SR 10:10MR  2:27VT 
 6-15          21: 1SS         23:22TE  1: 2MS  2:58TS          5:20SR 11:26MR  1:55VT 
 6-16          21: 1SS         23:23TE  1:30MS  2:58TS          5:20SR          1:28VT 
 6-17  12:43MR 21: 1SS         23:25TE  1:55MS  2:58TS          5:20SR          1: 2VT 
 6-18  14: 0MR 21: 1SS         23:25TE  2:17MS  2:58TS          5:20SR          0:40VT 
 6-19  15:16MR 21: 1SS         23:25TE  2:42MS  2:58TS          5:20SR          0:16VT 
 6-20  16:32MR 21: 1SS         23:25TE          2:58TS  3: 9MS  5:22SR          0: 0VT 
 6-21  17:49MR 21: 2SS         23:25TE          2:58TS  3:39MS  5:22SR          0: 0VT 
 6-22  19: 6MR 21: 2SS         23:25TE          2:58TS  4:16MS  5:22SR          0: 0VT 
 6-23  20:17MR 21: 2SS         23:25TE          2:58TS  5: 0MS  5:22SR          0: 0VT 
 6-24          21: 2SS 21:22MR 23:25TE          3: 0TS          5:22SR  5:54MS  0: 0VT 
 6-25          21: 2SS 22:17MR 23:25TE          3: 0TS          5:22SR  6:54MS  0: 0VT 
 6-26          21: 2SS 23: 1MR 23:25TE          3: 1TS          5:22SR  8: 0MS  0: 0VT 
 6-27          21: 2SS         23:25TE 23:37MR  3: 1TS          5:24SR  9: 6MS  0:12VT 
 6-28          21: 2SS         23:25TE  0: 6MR  3: 1TS          5:24SR 10:11MS  0:40VT 
 6-29          21: 2SS         23:25TE  0:28MR  3: 2TS          5:25SR 11:16MS  1: 3VT 
 6-30          21: 2SS         23:23TE  0:50MR  3: 4TS          5:25SR          1:26VT 

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.