Page:A Voyage to Terra Australis Volume 1.djvu/489

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Lunar observations.]

268

APPENDIX.

TABLE II. (Reference from p. 84.)

Longitude of the south point of Lucky Bay, Archipelago of the Recherche.

Appt. Greenwich time of the observations.

Place.

Longit. E. from Naut. Alm.

Reduction by two time keepers.

E. Longitude of Lucky Bay.

Correction

Correct Longit. of Lucky Bay.

Whence deduced.

Observer.

for errors in tables

Interv. of ☾'s error.

1802 Jan.⁠

º

'

"

º

'

"

'

"

º

'

"

º '
9 at 17 56

\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \\\ \ \end{matrix}}\right.}

On the
South Pt.
—
—
—
—

122
122
122
122
122
122

30
29
33
34
38
41

45
30
15
45
45
15

122
122
122
122
122
122

30
29
33
34
38
41

45
30
15
45
45
15

−6
—
—
—
—
—

15

One day
—
—
—
—
—

122
122
122
122
122
122

24
28
27
28
32
35

30
15
0
30
30
0

ʘ W. ☾
—
—
—
—
—

C
—
—
—
—
—

27 at 13 28

\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \ \end{matrix}}\right.}

At sea.
—
—
—
—
—

132
131
131
131
131
131

0
51
51
47
50
52

45
15
0
0
15
45

º
+9

'
30
—
—
—
—
—

"
55

122
122
122
122
122
122

29
20
20
16
19
21

50
20
5
5
20
50

−8
—
—
—
—
—

45

As on 27th
there
being no
other obs.
until
Feb 5.
—

122
122
122
122
122
122

21
11
11
7
10
13

5
35
20
20
35
5

ʘ E. ☾
—
—
—
—
—

C
—
—
—
—
—

28 at 14 42

\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \ \end{matrix}}\right.}

On shore
at Fowler's
Bay.
—

132
132
132
132

30
24
19

45
30
30
15

+10

13
—
—
—

38

122
122
122
122

17
10
5
5

7
52
52
37

−8
—
—
—

30

Ditto.
—
—
—

122
122
121
121

8
2
57
57

37
22
22
7

Ditto.
—
—
—

F
—
—
—

Longitude from sixteen sets of lunar distances,

\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,}

Uncorrected

122

23

27,1

Corrected

122

15

42,1

Longitude of the south point from the two time keepers.

On Jan. 9 at 15º 51' of Greenwich time, and using the King-George's-Sound rates, the mean longitude was	122º	15'	48"
Correction for variation in the rates found at Pt Lincoln,		−0	24,1
Correction for supplemental error during 9 days,		−1	10,2
Corrected longitude, taken preferably to that above,	122	14	13,7	east

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