7/25/2019 Sextant Sight of the Sun

1/2

Sextant Sight Reduction of the Sun

Marc st Helaire

Date June 22nd GMT 08:45 Lat 49 25N Long 020 40W

Name of Body Sun S !0 20"# $% !"0 on a&' ( of % 9"2m

G( ) 299 !2"# d ) 0"0 S 0!0 20"#

$n' ) * ## #5"0 De' N 2! 2+"2 $% on,-off* 0!"0

V corrn d 'o&&n 0 . 0!0 #/"#G( ) !#0 4/"# De' N2! 2+"2 D1 , 05"!

a3'u3ated 3ttude ) 0!0 ##"8

S( ) o Lat ) 0"+5055 T * #4"4

Long ) , 020 40"0 S-61

o De' ) 0"9#/50 T 0!0 2+"2

L( ) 290 0/"# 0!0 29"!

o L( ) 0"!4!90 D$ 0!"#

7a ) 0"205!0

0"4! S Sn Lat ) 0"/594+B 0"4+ N

0"0! N Sn De' ) 0"!9//! S ) Setant 3ttude

$% ) $nde %&&o&

. ) .e&ed 3ttude

D1 ) (eg6t of %ye ) 11a&ent 3ttude

T ) Tota3 o&&e'ton

T ) Tota3 3ttude ) a3'u3ated 3ttude

D$ ) Dffe&en'e $nte&'e1t

) 88"9 7 ) 0"!020+

; of un N 89 % 7a 0"205!0*-,

7 0"!020+

$ne&t of Sn ) 0"50/!+

!0"48

Ta 7t6e $n' a3?ay addedt t6e ame tme a3o ta t6en t6e dfa'to& added a ?e33 f not t a mnu

113y Long ,W o& *% to t6e G( t6 ?33 ge you you& L(

@ng you& L( ente& t6e no&e B ta3e> fo33o? nt&u'ton on t6e 1age and you ?33 end u1 ?t6T6e ; of t6e ody t6 ?33 e a A 'ou&e : NS a = %W a Long 0 #80 ) W #80 !+0 ) %

a3'u3ated 3ttude ) 7'o Lat 'o De' 'o L( )A 7n Lat n De' )B$f Lat = De' 6ae t6e ame name NN addA & B. $f Lat = De' 6ae dffe&ent name NS mnuA & B

T6e an?e& ?33 e t6e ne&t of n t6e fna3 an?e& ?33 e t6e a3'u3ated 3ttude ?6'6 n deg&ee"

a3'u3ate t6e Setant 3ttude t6&oug6 to t6e Tota3 3ttude 7$% ) on a&' mnu = off a&' added

Co& D1 = T ee t6e 3ttude o&&e'ton Ta3e

T6e D$ ) T ,

7/25/2019 Sextant Sight of the Sun

2/2

Sextant Sight Reduction of the Sun

Marc st Helaire

$f t6e g&eate& t6an t6e T t6e nte&'e1t a?ay f&om t6e ody

$f t6e T g&eate& t6an t6e t6e nte&'e1t to?a&d t6e ody