✨ Longitude Calculation Publication
Numb. 46.
635
DIEU ET MON DROIT
SUPPLEMENT
TO THE
NEW ZEALAND GAZETTE
OF THURSDAY, MAY 16, 1878.
Published by Authority.
WELLINGTON, MONDAY, MAY 20, 1878.
7, Westminster Chambers,
London, S.W., 27th February, 1878.
SIR,— I have the honor to transmit copy of a letter which I have received from Mr. J. T. Thomson,
Surveyor-General of New Zealand, covering notes on the longitude of the Survey Observatory of Welling-
ton, New Zealand; and also the computations of corrections of moon's distances, by Sir George Airey.
I have no doubt the Government will recognize the expediency of complying with Mr. Thomson's
request to have this technical information inserted in the New Zealand Gazette.
The Hon. the Colonial Secretary, Wellington.
I have, &c.,
JULIUS VOGEL,
Agent-General.
[COPY.]
Bamborough, Northumberland, 11th February, 1878.
SIR,— I have the honor to forward to you a note on the longitude of the Survey Observatory of Wellington,
New Zealand, which, if you think fit, you will forward to the Government of the colony for publication in
the Gazette. The technical importance of the subject consists in the Survey Observatory being the initial
station of the general surveys now going on.
While soliciting your attention to the above, I beg to cordially acknowledge the favour of your assist-
ance in moving the authorities at Greenwich Observatory, by whom my wants were immediately and most
courteously attended to.
Appended to my note are the computations of corrections of moon's distances, by Sir George Airey.
The Agent-General for New Zealand, London.
I have, &c.,
J. T. THOMSON,
Surveyor General of New Zealand.
LONGITUDE of SURVEY OBSERVATORY, Mount Cook, Wellington, New Zealand.
H. M. S.
Longitude of Rockyside Observatory, Dunedin, by J. T. Thomson. (See Par-
liamentary Reports, 1871, 7, G.—23, 6) 11 22 06.19 E.
Correction of moon's positions by Astronomer Royal, 2nd February, 1878 -6.58
Rockyside Observatory corrected 11 21 59.61
Electric difference, Rockyside and Hutt. (See Parliamentary Reports, 1871,
G.—23, 10). +17 44.52
Hutt Observatory 11 39 44.13
Trigonometrical difference, Hutt and Pipitea Point. (See Parliamentary
Reports, 1871, G.—23, 4) -32.53
Pipitea Point 11 39 11.60*
Trigonometrical difference, Pipitea Point, and Survey Observatory, Wellington 1.68
Longitude of Survey Observatory, Wellington 11 39 09.92
J. T. THOMSON, Surveyor General.
- Admiralty determination (See New Zealand Pilot) H. M. S.
11 39 11.53 E.
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NZ Gazette 1878, No 46
✨ LLM interpretation of page content
🗺️ Publication of Wellington Survey Observatory Longitude Calculations
🗺️ Lands, Settlement & Survey20 May 1878
Longitude, Survey Observatory, Wellington, Astronomy, Computations, Triangulation
- Julius Vogel, Agent-General
- J. T. Thomson, Surveyor General of New Zealand