Schlagintweit, Hermann von; Schlagintweit, Adolf; Schlagintweit, Robert von: Results of a scientific mission to India and High Asia: undertaken between the years MDCCCLIV and MDCCCLVIII, by order of the court of directors of the hon. East India Company (Band 1): Astronomical determinations of latitudes and longitudes and magnetic observations: during a scientific mission to India and High Asia (Leipzig, 1861)

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astronomical detebminations op latitudes and longitudes.

Latitude and Time.

1856, January 10. Vertical Circle.

101' 19m 33s a. Jupiter. 25° 28' 20"

b. Sun's Centre.

1856, January 12. Horizontal Circle. Vertical Circle.

3h lm 28s 123° 42' 40" 40° 0' 5"

( 671-6 millim. m ' ] . ( 26-9 C.

Barom. { . , lemp. oi Air I „

( 26-441 inches. (80-4 Fahr.

Jupiter. Sun.

O / o /

Sum of Refraction -f- Parallax — 0 1-8 — 0 0-9

Declination............ — 11 29-0 — 21 46-1

R.A................. 22h 19m 59s

Time: Mean Noon from Jupiter.............. 3h 57m 28s

Latitude from the Sun (calculated by one Approximation) 26° 53' 50"

Longitude.

The chronometer could not be keyed January 6, the kuli remaining behind.
Time is therefore arbitrary. The above longitude is based on a series of bearings
connecting a peak close to Narigun with Udelgiiri; the result was a difference of
longitude of 10', Narigun being east of Udelgiiri.

I have no other data for comparison.

Meridian.

Deduced from low Altitudes of the Sun................ 138° 10'-0.

No. 45. Darjlling, in Sikkim.

This important sanitarium for Eastern Bengal is the chief place of British Sikkim
under the charge of the Superintendent and Political Agent, Dr. Campbell, a gentleman
well known for the active personal part he took in Dr. Hooker's travels in Sikkim,
and to whom I too am greatly indebted for the kind assistance he gave me.

My instruments were placed on a little hill, called at the station, "Observatory