01.05.2023 Views

Constellations Thesis Book by Nesrin Zidan

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

...

145

3.2. Sky Navigation

Before the development of precise timekeeping and satellites, the first

theory of “lunar distances” or “lunars,” an early means of establishing an exact time at

sea, was published in 1524. A crucial step in calculating Greenwich time was for the

navigator to determine latitude and longitude using the angular distance between the

moon and another celestial body. Private yacht owners continue to employ celestial

navigation, particularly for long-distance global cruising vessels since satellite navigation

systems can occasionally malfunction. Thus, it is also regarded as a necessary ability

while traveling outside of the visual range of land (Davidson, 2022).

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!