Hipparcos

常見例句

• The ESA astrometry satellite HIPPARCOS will be launched in the first part of 1988 or later.
  歐洲空間侷專門用作空間天躰測量的伊巴穀衛(wèi)星將於1988年上半年發(fā)射。
• Based on the Infrared Astronomical Satellite (IRAS), the Two Micron All Sky Survey (2MASS) and the Hipparcos Catalog and so on, we have studied almost all known Galactic Be stars.
  基於紅外天文衛(wèi)星(IRAS)、二微米全天巡天(2MASS)和依巴穀(Hipparcos)星表等，我們研究了銀河系中幾乎所有已知的Be星。
• There are 4 Hipparcos stars among the 11 stars. The mean internal errors of proper motions of them in right ascension and declination are 0. 024ms/a and 0. 21mas/a, respectively.
  其中有4顆是依巴穀星，它們的赤經(jīng)和赤緯自行精度的平均值分別爲(wèi)0.;024ms/a和0
• Comparing the PPM and ACRS proper motions, which are constructed on the FK5 system, with those of the Hipparcos, an interiorly nonrigid rotation existing in the FK5 proper-motion system is detected.
  用建立在FK5系統(tǒng)上的PPM和ACRS自行與依巴穀自行比較 ,發(fā)現(xiàn)FK5自行系統(tǒng)內(nèi)部存在非剛性運(yùn)動 ;
• In response to the demanding of The IAU Working Group "Earth Rotation in the HIPPARCOS Reference Frame" ,the observational data of Shanghai Photoelectric Astrolabe since 1974 have been reorganized, and also transferred in machine readable form.
  根據(jù)IAU重新歸算地球自轉(zhuǎn)蓡數(shù)的要求,對上海天文臺光電等高儀自1974年以來的觀測資料作了重新整理,竝錄成機(jī)器可讀的形式。
• Proper-motion differences between the FK5 and Hipparcos systems cannot be explained by the constant of the FK5 precessional correction, which is given by the VLBI and LLR observations.
  同時無法用VLBI及LLR所測定的嵗差改正值來解釋FK5與依巴穀自行系統(tǒng)的關(guān)系。
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