Determining the Absolute Parameters of the Meridian Circle By Observing the Prime Vertical Ⅱ, The Absolute Determination of the Equatorial Point "of the Graduated Citcle
The evolution of the temporal and spatial distributions of the Coronal Holes(CHs), the evolutionary features of the magnetic fields in the CHs and their ralation to the solar cycles are analyzed in this paper by using the CHs data from 1970 to 1995. It is found that the equatorial CHs and the polar ones have opposite evolutionary regularity and characteristics related to the solar cycles.
Using the fault plane parameters,the epicenter location and the expression given by Dahlen as well as the step fuction,the accumulative change of the equatorial moment of the inertia of the Earth for 1977-1994 data in the Harvard table are estimated in this paper.
The chondroitin-sulfate microenvironment made the enzyme resistant to heparin inhibition because the equatorial orientation of the OH groups is similar to that in hyaluronic acid.
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Near-Equatorial Electrons as Measured onboard the MirSpace Station
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Some results of studying the electrons with energies of tens to hundreds of keV at the low and near- equatorial geomagnetic latitudes by using the instruments Sprut-V and Ryabina-2 onboard the Mirspace station in 1991 are presented.
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The most intense electron fluxes are observed at the lower edge of the near-equatorial boundary of the inner radiation belt on longitudes of the South Atlantic Anomaly between 14 and 20 h MLT.
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The motion of a spherically symmetric balloon satellite near the equatorial plane is considered.
In this paper the following three problems are studied:(i)the effect of differential rotation on the shape of a spectral line;(ii)the effect of differential rotation on the measurement of equatorial rotational velocities of stars;(iii)the possibility of discovering differential rotation. Two main results are obtained:(i)for the present precision of measurement,dif- ferential rotation cannot be discovered from the analysis of line profile;(ii)for a dif- ferentially rotating star,if we treat it as if it...
This paper presents an analysis of the polarization characteristics of the radia- tion of the inner corona and its condensation region.Photographs of the corona were taken during the total solar eclipse of 22 September,1968 in the western part of Sinkiang. On the basis of analysis of the photographs with exposure 1/15 sec.the fol- lowing conclusions are drawn: About the inner corona:(1).In the range r≤1.54 R_⊙ the isophotes appear to be ellipses with rather small ellipticity.As for the variation of intensit...
At the total solar eclipse on 1968 September 22,observable in Western China, photographic observation of the polarization of solar corona was made separately on ground and in an airplane,Good photographs of the corona were obtained with a three-objective camera(ground:D=8cm,F=120cm;airplane;D=10cm,F= 100cm).The spectral range covered by photography is 5700—6300A,the effective wave length is 6000A.The camera was carefully adjusted,scattered light was negli- gible(<1%). Through photometric measurement,the abs...