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Re: Sunrise
From: Stacy Hanna
Date: 2004 Jul 18, 20:06 -0400
From: Stacy Hanna
Date: 2004 Jul 18, 20:06 -0400
The times that you used for sunrise were actually the times for Civil
Twilight, Using the correct times the answer would be:
lat: 24-20 S long: 47 W
Nautical Almanac 2003
20 6.34
24,20 X
30 6.53
------- --------
10* 19 m Dla = 24.20 - 20 = 4* 20'
Table 1 page xxxii
10-4.20-4.30-19-20 --- corr. = 9 m X= 6.34 + 9 =6h 43m
long: 47*
47*/15* = (ZD)3 x 15* = 45*
---------
Dlo 2*
conv. arc to time page i
2--- 8 m (w=+)
06 h 43 m
----------------
SUNRISE 6 h 51 m
-----Original Message-----
From: Navigation Mailing List
[mailto:NAVIGATION-L@LISTSERV.WEBKAHUNA.COM] On Behalf Of Guus Dekker
Sent: Sunday, July 18, 2004 14:38
To: NAVIGATION-L@LISTSERV.WEBKAHUNA.COM
Subject: Sunrise
What is wrong with my computation about sunrise at Sao Paolo at july 18
2003(three)
lat: 24-20 S long: 47 W
Nautical Almanac 2003
20 6.11
24,20 X
30 6.27
------- --------
10* 17 m Dla = 24.20 - 20 = 4* 20'
Table 1 page xxxii
10-4.20-4.30-17-15 --- corr. = 7 m X= 6.11 + 7 =
6h 18m
long: = 47*
47*/15* = (ZD)3 x 15* = 45*
---------
Dlo 2* conv. arc to time page i
2--- 8 m (w=+)
----------------
SUNRISE
6h 26m
(my navigator light 4.1. prog tells me the sunrise = at 6h 50m)
??????
Guus Dekker The Netherlands (Stedum : 53-19,24N 006-41,31E)
