Sends a copy of an ephemeris of Biela's comet for November and December.
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Sends a copy of an ephemeris of Biela's comet for November and December.
Has just completed the orbit for the binary star Mu2 Bootis. Sends details. Could not send his notice of Biela's comet to W. R. Dawes as he did not know his address.
Is grateful for details of his method of calculating the orbits of double stars. Comments on some of his observations.
Has been considering what principle should be followed in the computation of the orbits of double stars. Gives his views.
Will apply JH's principle at the first opportunity. Has made some successful observations of the star Epsilon Arietes. Intends observing Castor on every fine evening.
Communicating the elements of Castor and Corona by JH's method. Comments on these readings.
Sending him the elements of the new planet Astrea. Orbit is based on the Berlin observations. Differs from those given by J. F. Encke.
Rejoices that RH is studying orbit of Mu2 Bootis. Suggests way to simplify calculations. Compares orbits for Gamma Virginis calculated by various observers. Notice of systematic errors.