نتایج جستجو برای: longitude y

تعداد نتایج: 497864  

Journal: :Journal of Geophysical Research: Space Physics 2010

Journal: :Astronomische Nachrichten 1911

2009
J. DUFEY N. RAMBAUX B. NOYELLES A. LEMAITRE

The space missions MESSENGER and BepiColombo require precise short-term studies of Mercury’s rotation. In this scope, we perform analytically and numerically by Hamiltonian approach a synthetic 2-dimensional representation of its rotation, using complete ephemerides of the orbital motions of the planets of the Solar System. This representation allows us to derive the librations in longitude and...

Journal: :Journal of Astronomical History and Heritage 2022

1999
R. C. Schmidtling V. Hipkins

Genetic diversity of allozymes at 24 loci was studied in 23 populations of longleaf pine (Pinus pa/u.stris Mill.). including three seed orchard populations and an old-growth stand. Overall, the mean number of alleles per polymorphic locus was 2.9, the percentage of polymorphic loci was 92%. and the mean expected heterozygosity was 0.105. These values are comparable with diversity measures found...

Journal: :Monthly Notices of the Royal Astronomical Society 1880

Journal: :Proceedings of the Japan Academy 1950

Journal: :Monthly Notices of the Royal Astronomical Society 1873

Journal: :Symposium - International Astronomical Union 1970

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