Asks for JH's comments on YV's specific double star observations. YV presents the mathematical method he uses to calculate double star orbits, which he had presented to the Paris Académie in 1847, but it was not published.
Asks for JH's comments on YV's specific double star observations. YV presents the mathematical method he uses to calculate double star orbits, which he had presented to the Paris Académie in 1847, but it was not published.
Has passed YV's memoirs on the calculation of orbits on to G. B. Airy for publication; copies will be sent [see YV's 1849-4-1]. Notes that YV's methods are similar to those of U. J. J. Leverrier.
Is sending a communication to JH for insertion in the R.A.S.M.N. Seems to be some problem with understanding YV's calculations of the orbits of double stars, so YV explains his method.
Thanks JH for his interest in YV's work on double stars. YV sends a copy of a note on double stars published in the Académie des Sciences for consideration by the R.A.S. Raises a problem of agreement between Newtonian theory and observational data. YV feels astronomical studies in France are slowing down.