P. Seidelmann

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We discuss the IAU resolutions B1.3, B1.4, B1.5, and B1.9 that were adopted during the 24th General Assembly in Manchester, 2000, and provides details on and explanations for these resolutions. It is explained why they present significant progress over the corresponding IAU 1991 resolutions and why they are necessary in the light of present accuracies in(More)
Relativistic models for the BepiColombo radioscience experiment Andrea Milani1, Giacomo Tommei1, David Vokrouhlický2, Emanuele Latorre1 and Stefano Cicalò1 1 Department of Mathematics, University of Pisa, Pisa, Italy email: milani@dm.unipi.it, tommei@dm.unipi.it, emanuele.latorre@gmail.com, cicalo@mail.dm.unipi.it 2 Institute of Astronomy, Charles(More)
  • S. Klioner, N. Capitaine, +6 authors M. Soffel
This note suggests nomenclature for dealing with the units of various astronomical quantities that are used with the relativistic time scales TT, TDB, TCB and TCG. It is suggested to avoid wordings like " TDB units " and " TT units " and avoid contrasting them to " SI units ". The quantities intended for use with TCG, TCB, TT or TDB should be called "(More)
During the last 10 years, the use of hand-held calculators has become feasable for navigation problems. The prices of the calculators have dropped precipitously and miniturization has significantly increased the capabilities of the hand-held calculator. But more significantly, miniturization has resulted in full-scale personal computers which can be used(More)
BVI photometry of Triton and Proteus was derived from HST images taken in 1997. The VEGAMAG photometric technique was used. Triton was found to be brighter by a few percent than observations of the 1970’s and 1980’s, as expected due to the increasingly greater exposure of the bright south polar region. The leading side was also found to be brighter than the(More)
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