...Ex. The logarithm of the perihelion distance of the comet in 1769 wad 9,0886320, according to EULER. What was its anomaly at 50 days before or after its perihelion ? Log. of perihelion distance Its half . Their sum Log. of 5O days Remainder » 9,O88632O 9,5443160 8,6329480 1,6985700...