Quote:
Originally Posted by Sjizzle
If the time at an observer’s position is 2 hours and 3 minutes after noon, then the angular distance between the observer’s meridian of longitude and the Greenwich Meridian must be (2 x15o ) + (3x 15’) = 30o 45’. Because it is after noon at the observer’s position, the longitude of that position must be to the East of the Greenwich Meridian since the Earth rotates from West to East. Therefore the observer’s longitude must be 30o 45’ East and since LHA is measured westwards from the observer’s meridian, the LHA must also be 30o 45’.
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Thank you Sjizzle this explained everything to me, i am sure it will help the others too, if they'll find it!
I would just complain this approach as main description for get longitude in your post #2, because its not clear how that spreadsheet calculates it and its not IMO realistic to use excel in 1939
