TY - JOUR T1 - On the Periodical Changes of Brightness of Two Fixed Stars. By Edward Pigott, Esq. Communicated by Sir Henry C. Englefield, Bart. F. R. S. JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 87 SP - 133 EP - 141 PY - 1797/01/01/ UR - http://dx.doi.org/10.1098/rstl.1797.0007 M3 - doi:10.1098/rstl.1797.0007 AU - Pigott, E. AU - Englefield, H. ER -