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observatory
相关语句
  天文台
    DETERMINATION OF THE LONGITUDE OF PURPLE MOUNTAIN OBSERVATORY
    紫金山天文台经度的测定
短句来源
    WORK ON RR LYRAE-VARIABLES AT BUDAPEST OBSERVATORY
    布达佩斯天文台对于天琴座RR型变星的研究工作
短句来源
    AN ANALYSIS OF THE DATA OF THE TOTAL SOLAR FLUX OBSERVATIONS AT 3.2CM OBTAINED IN THE PEKING OBSERVATORY DURING THE YEARS 1965-1975
    北京天文台3.2厘米波段太阳射电观测分析(1965年1月—1975年12月)
短句来源
    SHANGHAI OBSERVATORY'S HYDROGEN MASER
    上海天文台的氢原子钟
短句来源
    THE PHOTOELECTRIC ASTROLABE CATALOGUE OF SHANGHAI OBSERVATORY (1975.9-1978)-THE CORRECTIONS TO THE INDIVIDUAL FK4 POSITIONS
    上海天文台光电等高星表(1975.9-1978)—对FK4的个别位置改正
短句来源
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  观象台
    ANALYSIS OF THE RESULTS OBTAINED AT ZI-KA-WEI OBSERVATORY WITH AN IMPERSONAL ASTROLABE (1958—1960)
    1958—1960年徐家汇观象台超人差稜镜等高仪观测的初步分析
短句来源
    This article describes the measurement of atmospheric agitation by taking pho- tograph of the star trail at Sheshan section of Shanghai Observatory and at Qingdao Observatory.
    本文叙述了1968—1970年间上海天文台余山部分(以下简称佘山)和青岛观象台(以下简称青岛)两地用恒星照相拖影法进行的大气抖动测定.
短句来源
    The results of photographic Observations of Comet Hale-Bopp at Qingdao Staiton of Purple Mountain Observatory are given in this paper.
    中国科学院紫金山天文台青岛观象台从1996年4月开始到1995年5月1日结束,在138个观测夜,共拍摄Hale-Bopp彗星底片508张。
短句来源
  “observatory”译为未确定词的双语例句
    AN ANALYSIS OF THE DATA OF THE SOLAR RADIO OBSERVATIONS AT 3.2 AND 10cm IN THE PURPLE MOUNTAIN OBSERVATORY
    紫台3.2厘米、10厘米太阳射电观测资料分析
短句来源
    THE OBSERVATIONS OF THE PLANETS WITH A DANJON ASTROLABE AT SHANGHAI OBSERVATORY (1964-1978)
    丹容等高仪大行星观测资料(1964-1978)
短句来源
    THE RESULTS OF OBSERVATIONS OF PLANETS WITH A DANJON ASTROLABE AT SHANGHAI OBSERVATORY DURING THE YEAR 1980
    1980年上海台丹容等高仪的行星观测结果
短句来源
    PRELIMINARY ANALYSIS OF 1979-80 SOLAR ACTIVITY PREDICTION AT PURPLE MOUNTAIN OBSERVATORY
    79—80年紫台太阳活动预报初步分析
短句来源
    Preliminary Analysis of the Latitude Observation Data Obtained During the Period (1975—1980) at Wuchang Time Observatory
    武昌时辰站1975—1980年纬度观测资料的初步分析
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  observatory
A close correlation is shown between the morphological characteristics of the proton precipitation and the Pc1 pulsations observed by the ground-based geophysical observatory Sodankyl?.
      
Using a statistical method developed for comparing the components, we have found in the BATSE catalog 11 candidates of gamma-ray bursts with mesolensing for the entire time of operation of the Compton Gamma-Ray Observatory (1991-2000).
      
The results of observations are compared to similar data on midlatitude auroras observed at the geophysical observatory in previous years.
      
The system of anti-lightning protection measures set up under the high mountain conditions of the Andyrchi facility at the Baksan Neutrino Observatory of the RAS INR is described.
      
A fluorescent airborne stratospheric hygrometer (FLASH) for precise water vapor measurements on board a high-altitude airplane in the upper troposphere and the lower stratosphere has been developed and produced at the Central Aerological Observatory.
      
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As in general in all time service works, the problem is to obtain and keep an accurate time, to determine the corrections of standard clock and to transmit time signals. This present report is concerned only with the last two items. At Zi-Ka-Wei Observatory, radio method was introduced into time service in 1914. Some rigorous changes occured in 1926, a number of instruments were installed. Many of them are still in use. In 1940, the observatory began to transmit rhythmic signals twice a day. From then...

As in general in all time service works, the problem is to obtain and keep an accurate time, to determine the corrections of standard clock and to transmit time signals. This present report is concerned only with the last two items. At Zi-Ka-Wei Observatory, radio method was introduced into time service in 1914. Some rigorous changes occured in 1926, a number of instruments were installed. Many of them are still in use. In 1940, the observatory began to transmit rhythmic signals twice a day. From then on until December 1950, no further developments were made. The main instruments we had in 1950 were: a 80mm Prin transit with impersonal micrometer, two Leroy pendulums as standard clocks, three astronomical clocks and their slaves, equipments for receiving and recording time signals, etc. Since 1952, we began to make some improvements, especially on rhythmic signals. First, we converted a common clock into a "transmitting clock" to obtain 61 impulses in every minute and second by making use of photoelectric arrangement (Fig. 1), we succeeded to raise the accuracy of our signals. To improve signal accuracy further, we have to deal with various sources of errors which are conditioned by our equipments. The most important among these are: 1. error in prediction of corrections of the standard clocks, 2. error in the adjustment of the transmitting clock and 3. time lag in transmission. In consequence of last three-year's research, these errors are reasonably reduced. The first two are now±0~s.007 and ±0~s.005 respectively and the last is small. Accordingly, the deviation of time signals XSG has been supposed to be±0~s.01. However, this is not enough for the requirement. The more efforts are being made to bring further improvements. But as the requirements for signal accuracy is far above what the present installation can offer, some new equipments are ordered and they will joint in force with the old ones in the nearest future. Since February 1954, Zi-Ka-Wei Observatory has cooperated with the time service departments in Soviet Union. This has been helpful to our works in every way.

授時包括测時、守時和播時三个主要方面。在時號的发播中包含了预報主钟改正量的差误,工作钟的調節誤差和電路遲滯变化等三种誤差。如果使用石英钟及有關设备,这就可基本解决。各台站在其天文观测基础上订定的時號改正數也包含有偶然差和系统差,比較全面解決的只有蘇聯和国際時間局这两个标准系统。徐家匯觀象台授時工作歷史很久,作了一些工作,但抗戰以來,郎停滯不前,直到人民政府接办,才逐步在原有基礎上開展了改進。幾年来主要是改裝了一具工作钟,裝置光電设备以发播科学式時號,對時号精确度解决了秒距誤差和五分间誤差。工作钟的调节誤差被其本身品質所限,仍未解决,只是在加強值班工作之后,有了一定限度的提高,目前約為±0~s.005,在预报主钟改正量時,也有很大程度的不稳定,約為±0~s.007。所以時号的精确度在±0~s.01左右。要进一步提高质量,满足要求,有待於新設備的增添使用。在時号改正數方面,所存在的相當大的系统差,可採用蘇聯或国際時間局系統的改正數來避免。

For four years(1951—54)time determination data,after allowed for personal equation and referred to the mean observatory which is formed by the International Time Office(B.I.H.),seasonal fluctuation with amp- litude equals to 25 ms is found.That is,the clock corrections observed at Zi-Ka-Wei Observatory seem larger in May while smaller in February and July as compered with their annual mean. The Δ(α_α) type error of the fundamental catalogue(FK_3)contributes to the seasonal fluctuation with an amount...

For four years(1951—54)time determination data,after allowed for personal equation and referred to the mean observatory which is formed by the International Time Office(B.I.H.),seasonal fluctuation with amp- litude equals to 25 ms is found.That is,the clock corrections observed at Zi-Ka-Wei Observatory seem larger in May while smaller in February and July as compered with their annual mean. The Δ(α_α) type error of the fundamental catalogue(FK_3)contributes to the seasonal fluctuation with an amount of 6ms only. Inclination of atmospheric equi-density surface in pre-earth layer which is calculated with air pressure and temperature data taken from Shanghai and Lig-Yang(180km west of Shanghai)shows annual variation of 2′.5, thus the effect of refraction anomaly corresponding to the inclination calcu- lated is practically null. Besides,room refraction is also harmful.By the air temperature data taken from the east and west wall inside the observing room,the effect of room refraction thus estimated may become 8 ms in summer and turn to zero in winter. However,after draw out the influence of Δ(α_α) type error and room re- fraction,the seasonal fluctuation still appear.It is thought that thermal deformation of the transit instrument may be account for,as the diurnal change of air temperature and the temperature drop at night both signi- ficantly correlate to the seasonal fluctuation of time observation.

中星仪测时的组内符合程度比组外符合程度约高一倍,这已是人所共知的事实.一般认为引起组外符合程度较差的因素是仪器情况的变更和反常折射的存在.本文根据1951—1954年间徐台的天文测时结果求出它的季节性变化,并考虑星表误差、反常折射以及其他气象因素在测时结果所引起的影响.在上述期间,徐台天文测时所用的是一具口径80mm 焦距86cm 的帕兰(Prin)中星仪,附有马达带动人手操纵的接触测微器,仪器的水平轴是用水银盘控制的.主要的观测者为龚惠人(K),沈祖耀(S),罗定江(L)三人.

Cepheid variables CY Aqr and BE Mon were observed at the Purple Mountain Observatory with a photoelectric photometer during December 1959 and the first two months of 1960.The observations of CY Aqr (Table 1) made on four nights provide sufficient data for plotting five complete light curves (Fig.1) of this variable.The phase of these observations has been computed with Lange and Nekrasova's formula.We noticed that the maxima of the plotted curves do not fall on the zero phase,but show a shift of about...

Cepheid variables CY Aqr and BE Mon were observed at the Purple Mountain Observatory with a photoelectric photometer during December 1959 and the first two months of 1960.The observations of CY Aqr (Table 1) made on four nights provide sufficient data for plotting five complete light curves (Fig.1) of this variable.The phase of these observations has been computed with Lange and Nekrasova's formula.We noticed that the maxima of the plotted curves do not fall on the zero phase,but show a shift of about 0.05φin phase toward the left.In other words, the maximum light occurs four or five minutes ahead of the time predicted by this formula.

用紫金山天文台的60厘米反光望远镜和1P21光电倍增管所构成的光电光度计,我们在1959年底和1960年初,对 CY Aqr 及 BE Mon 进行了测光观测.得到 CY Aqr 的五条完整的光变曲线.我们采用了从1934年到现在的29个观测所得的极大历元来和公式计算的相比较.若不承认历元有跃迁的可能,那末任何线性公式,都难以满足这些观测数据的要求.我们按周期随时缩短的假设,得出下列比较满意的公式:Max⊙=I.D.2427658.4079十0~d.061038576E—(0~d.742×10~(-12))E~2.用前后将近两个月观测 BE Mon 所获得的数据,我们得到了这颗造父变星的光变曲线.变星总表引用所定0~d.421的周期是不正确的.根据我们观测所得到的周期是2~d.704.按这周期来整理于1935年所完成的目视观测,我们也得出了一个很象样的光变曲线.

 
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