References on Finding Longitude by Lunar Distance
Stark Tables solution
Using Stark Tables from Steve Miller
Background on Stark Tables from Jan Kalivoda
Purchase Bruce Stark's Tables for Clearing the Lunar Distance
Background on lunars in general
Very short introduction by David Burch
A detailed history of Lunars by Richard de Grijs
Sample of an early presentation, Henry Raper, 1840, with interesting related discussio.
"GMT and Longitude by Lunar Distance: Two Methods (Stark and Brunner) Compared From a Practitioner's Point of View", by Eric Romelczyk, Journal of Navigation, Volume 72 , Issue 6, November 2019 , pp. 1660-1664
"A modern View of Lunar Distance" by HM Nautical Almanac Office (1966). Need Access. Try local Inner Library Loan
"Lunar Methods for Longitude without Time" by D.H. Sadler (2009). Need access, but see notes at the end.
Computer solutions
StarPilot (The first solution in a programmable calculator. StarPilot method)
Predicting and clearing lunars from Frank Reed
Another from Henning Umland (moon, stars almanac + LD for stars)
And from the prolific Omar Reis in his Tecepe Navigator app
Complex, but accurate, requires installing JPL Almanac, Lunar 4 by Paul Hirose
Trig Calculator solutions
Lunar Distance by Calculator: The Letcher Method
Wendel Brunner (from the article above)