ornithology
发表于 2025-3-30 08:55:39
Discussion of Meaning and Definition of UTual definition of UT1 is suggested, in order to correct this situation and a formula to realize this conceptual definition is presented, which can be used unchanged for every technique and is easily understood by the nonspecialist community.
Gleason-score
发表于 2025-3-30 15:39:53
Global Reduction of Fundamental Astrometric Data for under the form of cubic spline functions. The results are equivalent to those of conventional procedures, provided due account is given to the fact that, in the global reduction, long period components of image motion are fully included in the standard error estimates.
Hot-Flash
发表于 2025-3-30 18:23:58
Jessica Cronshagen,Philip Hogh,Timm Wöltjen is discussed, since it already gave rise to serious difficulties, but similar problems may occur about the space references. Such complexities are suprising: one could have expected simplifications from the use of references which are not entangled with theory. Some suggestions are made for the use of these natural references.
Encumber
发表于 2025-3-30 22:11:02
Silvia Thünemann,Anna Schütz,Aysun DoğmuşK5. The Faint Fundamental Extension is currently being selected at the U. S. Naval Observatory. A proposed list of 1030 Faint Fundamental stars has been prepared for the Northern Hemisphere, and work has begun on the selection in the Southern Hemisphere.
创新
发表于 2025-3-31 04:17:15
Brosche’s method for representing systematic differences in positions and proper motions of starsing procedure which seperates the systematic from the random parts. In the classiscal approach, the systematic differences are split into several components( for example Δ α .,Δ α. andΔ α. for right ascesion diffrences Δ α) each of whic, being dependent on one or two arguments, is tabulated at equid
thwart
发表于 2025-3-31 05:55:17
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Mortal
发表于 2025-3-31 09:38:41
The Extragalactic Optical/Radio Reference Frame A Progress Report, IAU Comm. 24 Working Groupress report which covers the group activities up to 1982 has been prepared recently (Argue and de Vegt, 1982)..Some of the present main activities of the working group are:.Future important fields are:
WAG
发表于 2025-3-31 13:48:29
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Gerontology
发表于 2025-3-31 19:37:51
Forschendes Lernen an Universitätenrent values of ρ and △m. Noise has been added and we have studied the effect of the signal to noise ratio on determination of the parameters ρ and △m of the pair. A good accuracy for △m is obtained for ∣△m∣ ≦ 1 and noise ≦ 10%. The determination of ρ is well achieved for noise level reaching 15 %. T
花束
发表于 2025-3-31 22:58:26
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