- 更多网络例句与周年视差相关的网络例句 [注：此内容来源于网络，仅供参考]
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The specific research contents include: celestial coordinates The establishment of the Department; Sunday apparent motion of celestial bodies and the anniversary of the apparent motion; celestial parallax, atmospheric refraction, optical aberration, precession, nutation theory and applications; astronomical time measurement principles and time systems; depending on the location of celestial bodies return calculation methods.
具体的研究内容有：天球坐标系的建立；天体的周日视运动和周年视运动；天体的视差、大气折射、光行差、岁差、章动的理论及应用；天文时间计量的原则和时间系统的建立；天体视位置的归算方法等。
- 更多网络解释与周年视差相关的网络解释 [注：此内容来源于网络，仅供参考]
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au：天文单位
三种距离单位的关系是: 1秒差距(pc)=206265天文单位(AU)=3.26光年=3.09×1013千米 1光年(1y)=0.307秒差距(pc)=63240天文单位(Au)=0.95×1013千米. (2)分光视差法 对于距离更遥远的恒星,比如距离超过110pc的恒星,由于周年视差非常小,
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heliocentric parallax：日心视差周年视差
heliocentric parallax 日心视差 | heliocentric parallax 日心视差周年视差 | heliocentric place 日心位置
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annual parallax：周年视差
annual overhaul 年度检修 | annual parallax 周年视差 | annual plan 年度计划
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annual parallax：恒星视差
annual overhaul 年修 | annual parallax 恒星视差 | annual parallax 周年视差
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annual parallax：周年视差 (天文)
"周年光行差 (天文)","annual aberration" | "周年视差 (天文)","annual parallax" | "年变","annual variation"
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annual parallax：年[周]视差
周年不等量 annual inequality | 年[周]视差 annual parallax | 心大星 Antares