Significados de ascertain the longitude en inglés

To ascertain the longitude was a more difficult matter.

Account of an attempt to ascertain the longitude

We were unable to ascertain the longitude of the lake, as our watches were useless; it may be between 22 Deg.

Owen had one evening entered the cabin shortly before the time for taking a lunar observation, in order to ascertain the longitude.

He could not ascertain the longitude of Victoria Island-the original name being retained-until the next day, and the latitude had already been taken.

No method existed for accurately ascertaining the longitude.

Yet upon this secret property of magnetism I ventured to build my hopes of ascertaining the longitude at sea.

One great question of the day amongst seamen and geographers was the discovering of some ready and sure method of ascertaining the longitude.

It is also mentioned that they had no lunar eclipses, by means of which they could have ascertained the longitude during the voyage.

By an observation of Jupiter's satellites, with a Dolland reflecting telescope, Captain Bonneville ascertained the longitude to be 102 57' west of Greenwich.

"With the aid of the chronometer we can as easily ascertain the longitude, though the calculation is a little longer," answered Captain Davenport.