Airy wrote expressing his interest, and asked for particulars about the radiusvector.
2
They concerned the error of the radiusvector.
3
The angles measured by Struve, reckoned from the radiusvector, prolonged towards the sun, are subjoined:
4
The area covered would always be uniform, because the radiusvector would always be uniform in length.
5
He also now answered quite satisfactorily, but too late, the question about the radiusvector sent to him months before.
6
This result is in perfect harmony with Kepler's Second Law, which states that equal areas are described by the radiusvector in equal times.
7
An important error in the theoretical formulae for Variations of RadiusVector, Longitude, and Latitude, was discovered; some calculations depending on them are cancelled.