Found in 16 Collections and/or Records:
Astronomical observations made between Port Jackson and Karakakoa Bay, Island of O’Whyee, 1795-10-13 - 1796-01-02
Observations made on board the ship while at sea, with an additional note on observations taken on 30 November on shore at Point Venus, on the island of Otaheita [Tahiti] [RGO 14/67: 114r].
Sketchbooks of sketches made by Martens during his voyage with HMS Beagle around South America and in French Polynesia.
Letter forwarding an account of a solar eclipse of 25 July 1767 observed by Captain Wallis from HMS 'Dolphin' in Port Royal Harbour, King George's Island (Tahiti). See also [RGO 4/187: 3].
Concerning the publication of observations from Captain Cook's first voyage and of variations of the compass from the first voyage of the Dolphin.
John Harrison reports that he no longer has any record of the observations he made as purser on HMS Dolphin of the eclipse observed from Port Royal, Tahiti, on 25 July 1767.
So called by Commodore Byron, 1765, and seen by Captain Cook in the Resolution, 1774. Taoukaá and a second, unnamed island are shown, along with a plot of the ship’s course. The latitude and east and west longitude from Greenwich are indicated in the border. Signed by William Wales.
The map also shows the reef surrounding Point Venus (DDD), the location of the observatory (O), and places where tide levels were recorded by Captain Cook, William Wales and William Bayly (A, B and C). Further details on the tide levels are provided in a reference table. A scale rule in furlongs is also provided.
Note; by Charles Robert Darwin
The observations begin with a note on setting up his observatory and equipment on shore. They include observations for the going of the clocks; reductions of the rate of Watch No. 1 from comparisons with Clock (B); observations on the tides; observed azimuths and amplitudes; and observations of the depression of the magnetic needle.
These include daily observations; observations of the moon’s distance from the sun; observations on the dip of the magnetic needle; observations for the variation of the compass; observations on the tides; observations for the going of the two clocks; observations for the going of Mr Kendall’s watch; and observations for the latitude of Point Venus.
These include daily observations; Azimuths of the sun; lunar observations; observations for the line of collimation of the quadrant; observations for the latitude of Point Venus by Hadley’s Quadrant; observations for the dip of the needle; observations for the going of the clock; observations for the going of Mr Kendall’s watch; and observations for the latitude of Point Venus.
Daily observations, covering the voyage between New Zealand and Tahiti. The observations for 17-25 August were taken while the ship was anchored in Oaiti-piha Bay [Vaitepiha Bay, Tahiti].