How can finding longitude require you to already know your longitude?

How can finding longitude require you to already know your longitude?
Posted 2017, Jun 14 10:29
"Now, we are not on the exact meridian, though, so we'll need to use the Arc to Time Conversion Tables (Figure 19) to correct the time for our distance from the meridian. We are in the time zone centered at longitude 60 degrees West. At 65 degrees 16 minutes west longitude, we are 5 degrees 16 minutes of arc to the west..." How can we use the Arc to Time Conversion Tables if we don't know our longitude beforehand?
Add reply
1 0

Replies

There are not any replies yet. Be the first!

Add reply

* - required fields

Please signin first
Add your reply in a positive and constructive manner and tone. Be as specific and clear as possible. Other students will vote your reply up or down depending on its usefulness the clarity. Your comments are always editable.