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DARK SKY INDEX

November 2001 Dark Sky Observing Time

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

11- 1          16:57SS 17:36MR 18:37TE          5:10TS          6:52SR  8:17MS  0: 0VT 
11- 2          16:55SS 18: 6MR 18:37TE          5:10TS          6:52SR  9:26MS  0: 0VT 
11- 3          16:53SS         18:36TE 18:43MR  5:11TS          6:54SR 10:34MS  0: 7VT 
11- 4          16:52SS         18:34TE 19:27MR  5:13TS          6:55SR 11:37MS  0:52VT 
11- 5          16:51SS         18:32TE 20:22MR  5:15TS          6:56SR          1:49VT 
11- 6  12:31MS 16:49SS         18:31TE 21:25MR  5:16TS          6:58SR          2:53VT 
11- 7  13:19MS 16:49SS         18:31TE 22:37MR  5:16TS          7: 0SR          4: 6VT 
11- 8  13:58MS 16:46SS         18:30TE 23:52MR  5:19TS          7: 1SR          5:22VT 
11- 9  14:30MS 16:46SS         18:28TE  1:10MR  5:19TS          7: 3SR          6:41VT 
11-10  14:58MS 16:45SS         18:28TE  2:27MR  5:20TS          7: 4SR          7:58VT 
11-11  15:23MS 16:43SS         18:27TE  3:43MR  5:22TS          7: 5SR          9:16VT 
11-12  15:49MS 16:43SS         18:25TE  5: 0MR  5:24TS          7: 7SR         10:34VT 
11-13  16:15MS 16:42SS         18:25TE          5:25TS  6:16MR  7: 7SR         10:59VT 
11-14          16:40SS 16:43MS 18:23TE          5:25TS          7:10SR  7:31MR 11: 1VT 
11-15          16:38SS 17:16MS 18:22TE          5:26TS          7:10SR  8:44MR 11: 4VT 
11-16          16:37SS 17:53MS 18:22TE          5:28TS          7:13SR  9:52MR 11: 6VT 
11-17          16:37SS         18:21TE 18:38MS  5:30TS          7:13SR 10:52MR 10:51VT 
11-18          16:37SS         18:21TE 19:31MS  5:31TS          7:15SR 11:41MR  9:59VT 
11-19          16:36SS         18:19TE 20:28MS  5:31TS          7:16SR          9: 3VT 
11-20  12:22MR 16:34SS         18:19TE 21:28MS  5:33TS          7:18SR          8: 4VT 
11-21  12:56MR 16:34SS         18:19TE 22:31MS  5:34TS          7:19SR          7: 2VT 
11-22  13:25MR 16:32SS         18:17TE 23:34MS  5:35TS          7:20SR          6: 1VT 
11-23  13:49MR 16:32SS         18:16TE  0:37MS  5:37TS          7:22SR          5: 0VT 
11-24  14:10MR 16:31SS         18:16TE  1:39MS  5:37TS          7:22SR          3:58VT 
11-25  14:31MR 16:31SS         18:16TE  2:42MS  5:39TS          7:24SR          2:57VT 
11-26  14:52MR 16:31SS         18:16TE  3:46MS  5:40TS          7:25SR          1:54VT 
11-27  15:13MR 16:30SS         18:15TE  4:52MS  5:40TS          7:26SR          0:48VT 
11-28  15:37MR 16:28SS         18:15TE          5:41TS  6: 1MS  7:28SR          0: 0VT 
11-29  16: 6MR 16:28SS         18:15TE          5:43TS  7:10MS  7:28SR          0: 0VT 
11-30          16:28SS 16:40MR 18:13TE          5:43TS          7:30SR  8:22MS  0: 0VT

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.