From [A. J. F.] Yvon Villarceau   [16 November 1849]

Summary

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.

Letter details

Record number

Herschel13609

From

[A. J. F.] Yvon Villarceau

To

Sir John Herschel

Date

[16 November 1849]

Sent from

Paris

Source of text

RS:HS 17.420

Physical description

ALS 2pp (French)

Additional information

Contributor

John Herschel Project[View Ɛpsilon collection]

• [A. J. F.] Yvon Villarceau
• Sir John Herschel