Post by Arthur Tabachneck
Post by firstname.lastname@example.org
Greetings, does anyone have a calculation that calculates the new
latitude and longitude based on a starting point, bearing and
I would greatly appreciate any help people might have.
Thanks so much for the link. I've been fiddling around with the
formulas and can't seem to get it to work. I get a plausible Lon2, but
the Lat2 is a negative decimal. Might you have any suggestions as to
what I'm doing wrong? Thanks again for the very helpful link.
lat2: =ASIN(SIN(lat1)*COS(d/ER) + COS(lat1)*SIN(d/ER)*COS(brng))
lon2: =lon1 + ATAN2(COS(d/ER)-SIN(lat1)*SIN(lat2), SIN(brng)*SIN(d/ER)
Earth Radius (KM)
LAT2 = -0.914704544 = ASIN(SIN(43.067833)*COS(10/6374) + COS(43.067833)
LON2 = -89.52818005 = -89.525639 + atan2(sin(90)*sin(10/6374)*cos