Pennule's Comet

Abstract

Assuming that the red spots period of rotation is 9'" 55"' 37'.o65-which is probably very near the truth-we tinid that in one nminute of time 0'.604 of the surface w%ill pass a given meridian. Multiplying the minutes in the last, or column 7; by) .604, We gtt the followiing tab)le of lengths in longitude on the surface (if Jupiter. Ilhe tirst nine are tatken tr-oii a table ot elenen trantits observedl by imie I)revi)us t) Augulst 30, a IdNI)isklld in En-1,r1t/s .1tft