Early Investigations of Ceres and the Discovery of Pallas by Clifford Cunningham

Author:Clifford Cunningham
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

Parallax is neglected here; its inclusion would increase the calculated RA a bit and decrease the Dec. The elements therefore appear to truly underestimate the RA; the Dec., however, still agrees well enough so that nothing can be decided. I still wonder over the accuracy of your observations which even appear to improve with the planet’s decreasing brightness. Bode has sent me some observations also taken with a circular micrometer (the last one from June 19), which agree much less among themselves.

A few days ago I received Oriani’s meridian observations of Pallas from Zach totaling 15, the last one from May 22. Although only whole seconds are given, they do agree among themselves very well, except that all of the RA are too small compared with those from Seeberg and Greenwich by a few seconds, perhaps the consequence of a difference in the comparison stars. Here is the result of the comparison with the Elements III; RA Decl.

RA Decl.

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