A Series of Observations On, and a Discovery Of, the Period of the Variation of the Light of the Star Marked Formula by Bayer, Near the Head of Cepheus. In a Letter From John Goodricke, Esq. To Nevil Maskelyne, D. D. F. R. S. And Astronomer Royal

Philosophical Transactions of the Royal Society of London

doi 10.1098/rstl.1786.0002