TY - JOUR T1 - On the Periodical Star $\alpha $ Herculis; With Remarks Tending to Establish the Rotatory Motion of the Stars on Their Axes. To Which is Added a Second Catalogue of the Comparative Brightness of the Stars. By William Herschel, LL.D. F. R. S. JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 86 SP - 452 EP - 482 PY - 1796/01/01/ UR - http://dx.doi.org/10.1098/rstl.1796.0021 M3 - doi:10.1098/rstl.1796.0021 AU - Herschel, W. ER -