Tuesday January 15th 1805.
Observed equal Altitudes of the ☉ with sextant and Glass artificial
horizon adjusted with a sperit level [43]
|
h |
m |
s |
|
h |
m |
s |
| A.M. |
8. |
26. |
32. |
P. M. |
— |
— |
— |
|
". |
29. |
14. |
|
— |
— |
— |
|
". |
32. |
1. |
|
1. |
49. |
46. |
| Altitude given by the sextant at the time of obtn. |
|
|
|
|
26°. |
6′ |
15″. |
|
|
|
|
|
h |
m |
s |
| Chronometer too slow on mean time |
|
|
|
|
1. |
1. |
57.7 |
Chronometer's daily rate of going, as deduced from this observation, and that of
the 22ed. of December 1804 is too slow on mean time 55s. 8.
☞I do not place much confidence in this observation in consequence
of loosing the observation of the Altitude of the ☉'s L. L. and
center P. M. and that [of] his U. L. was somewhat obscured by a
cloud. the weather was so could [cold] that I could not use-water as
the reflecting surface, and I was obliged to remove my glass horizon
from it's first adjustment lest the savages should pilfer it.
