July 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

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

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.