October 2007 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

10- 1  13:46MS 18:51SS         20:31TE 21:45MR  5:28TS          7: 9SR          1:13VT 
10- 2  14:49MS 18:49SS         20:28TE 22:49MR  5:30TS          7:10SR          2:20VT 
10- 3  15:37MS 18:46SS         20:27TE  0: 1MR  5:31TS          7:11SR          3:33VT 
10- 4  16:13MS 18:45SS         20:25TE  1:15MR  5:33TS          7:13SR          4:49VT 
10- 5  16:40MS 18:43SS         20:22TE  2:28MR  5:34TS          7:15SR          6: 5VT 
10- 6  17: 1MS 18:40SS         20:22TE  3:37MR  5:34TS          7:16SR          7:15VT 
10- 7  17:19MS 18:40SS         20:19TE  4:45MR  5:37TS          7:16SR          8:25VT 
10- 8  17:36MS 18:37SS         20:17TE          5:37TS  5:50MR  7:18SR          9:20VT 
10- 9  17:52MS 18:36SS         20:16TE          5:39TS  6:55MR  7:19SR          9:22VT 
10-10  18: 7MS 18:34SS         20:13TE          5:40TS          7:20SR  8: 0MR  9:27VT 
10-11  18:25MS 18:31SS         20:12TE          5:41TS          7:22SR  9: 6MR  9:29VT 
10-12          18:30SS 18:46MS 20:10TE          5:43TS          7:24SR 10:11MR  9:32VT 
10-13          18:28SS 19:10MS 20: 8TE          5:45TS          7:25SR 11:18MR  9:36VT 
10-14          18:27SS 19:40MS 20: 7TE          5:46TS          7:25SR          9:38VT 
10-15  12:21MR 18:25SS         20: 4TE 20:21MS  5:46TS          7:28SR          9:25VT 
10-16  13:19MR 18:22SS         20: 2TE 21:10MS  5:49TS          7:28SR          8:38VT 
10-17  14: 7MR 18:22SS         20: 1TE 22: 8MS  5:49TS          7:30SR          7:41VT 
10-18  14:49MR 18:19SS         20: 0TE 23:16MS  5:50TS          7:31SR          6:34VT 
10-19  15:21MR 18:17SS         19:58TE  0:30MS  5:52TS          7:33SR          5:22VT 
10-20  15:48MR 18:16SS         19:57TE  1:46MS  5:54TS          7:34SR          4: 7VT 
10-21  16:10MR 18:15SS         19:55TE  3: 2MS  5:55TS          7:35SR          2:52VT 
10-22  16:31MR 18:13SS         19:53TE  4:20MS  5:55TS          7:37SR          1:34VT 
10-23  16:51MR 18:10SS         19:52TE  5:41MS  5:58TS          7:37SR          0:16VT 
10-24  17:12MR 18:10SS         19:49TE          5:58TS  7: 5MS  7:40SR          0: 0VT 
10-25  17:36MR 18: 7SS         19:49TE          6: 0TS          7:40SR  8:33MS  0: 0VT 
10-26  18: 4MR 18: 7SS         19:46TE          6: 1TS          7:43SR 10: 1MS  0: 0VT 
10-27          18: 4SS 18:43MR 19:46TE          6: 3TS          7:43SR 11:25MS  0: 0VT 
Daylight Saving Time ends October 28, 2:00 am. The below times are PST
10-28          17: 2SS 18:32MR 18:45TE          5: 4TS          6:45SR 11:36MS  0: 0VT 
10-29          17: 1SS         18:43TE 19:36MR  5: 4TS          6:46SR          0:52VT 
10-30  12:31MS 17: 0SS         18:42TE 20:47MR  5: 7TS          6:48SR          2: 5VT 
10-31  13:13MS 16:58SS         18:40TE 22: 4MR  5: 7TS          6:49SR          3:23VT 

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.