On land, the period from the development of telescopes and pendulum clocks until the mid 18th-Century saw a steady increase in the number of places whose longitude had been determined with reasonable accuracy, often with errors of less than a degree, and nearly always within 2-3°.
Ring darat, periode saking panglimbak teleskop lan jam bandul kantos tengahan abad ke-18 nyinahang panincapan sane stabil saking jumlah tongos sane garis bujurne sampun katentuang antuk akurasi sane ngeranjing ring kenehe, sasai pisan antuk keiwangan kirang uli siki derajat, lan das satata saking 2-3˚.