Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996acasn..37..345x&link_type=abstract
Acta Astron. Sin., Vol. 37, No. 4, p. 345 - 351
Astronomy and Astrophysics
Astronomy
Vlb Interferometry: Nutation, Latitude Determination
Scientific paper
The observational data of optical classical instruments, of synthesis of
new techniques and of VLBI with today's highest precision are used to
detect the free core nutation (FCN). A retrograde circular motion with
period of 415 - 418 days and amplitude of sub-milliarcsecond (FCN) has
been obtained.
Xiao Naiyuan
Zhang Hanwei
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