astrometric

简明释义

英[/ˌæstrəˈmɛtrɪk/]美[/ˌæstrəˈmɛtrɪk/]

adj. 天体测量的

英英释义

单词用法

同义词

反义词

例句

1.Astrometric Limit: The maximum residual in the place of a reference star, specified in arc seconds.

天文测量误差极限：参考星位置对应的最大误差，用角秒表示。

2.The Problem of astrometric photometry is discussed in this paper. The photometric capabilities on both the ground-based astrometric instruments and space telescopes are presented.

讨论有关天体测量中的测光问题，介绍一些地面天体测量仪器和空间天体测量望远镜的测光研究。

3.The Problem of astrometric photometry is discussed in this paper. The photometric capabilities on both the ground-based astrometric instruments and space telescopes are presented.

讨论有关天体测量中的测光问题，介绍一些地面天体测量仪器和空间天体测量望远镜的测光研究。

4.Pressing the [OK] button will start the astrometric data reduction process. After a while, colored circles will be drawn around the objects detected by the software.

点OK后，天文数据分类将会开始，过一会儿，软件识别后的结果就会以彩色圈的形式显示出来。

5.The accuracy of the future international celestial reference frame obtained from astrometric satellites: SIM and GAIA are given.

介绍由天体测量卫星GAIA和SIM给出的天球参考架可能逵到的精度。

6.For astrometric purposes, dark frame and flat field calibration is recommended.

出于天文测量要求，暗场图和平场图校准是被推荐的。

7.Some ordinary forms of sparse matrix and the application of sparse matrix technology in astrometric and geodetic VLBI data analysis are introduced.

介绍了稀疏矩阵的四种常见形式以及稀疏矩阵技术在天测与测地VLBI数据处理中的应用。

8.If you save the images after astrometric data reduction has been performed, the software will add WCS keywords to the FITS header.

如果你的图片经过天文测量数据分类转换后储存，本软件将在FITS文件头部分添加wcs关键词。

9.The astrometric 天文测量 precision has improved significantly with new satellite technology.

随着新卫星技术的发展，天文测量精度显著提高。

10.The astrometric 天文测量 analysis revealed new insights into the structure of the Milky Way.

该天文测量分析揭示了关于银河系结构的新见解。

11.Astrophysicists rely on astrometric 天文测量 methods to understand the dynamics of star clusters.

天体物理学家依赖天文测量方法来理解星团的动态。

12.Scientists used astrometric 天文测量 data to determine the mass of distant galaxies.

科学家使用天文测量数据来确定遥远星系的质量。

13.The telescope was equipped with advanced astrometric 天文测量 technology to accurately track star movements.

这台望远镜配备了先进的天文测量技术，以准确追踪恒星运动。

作文

In the vast realm of astronomy, one of the most crucial aspects is the measurement of celestial objects' positions and movements. This field of study is known as astrometry, which involves precise calculations to determine the locations and distances of stars, planets, and other celestial bodies. The term astrometric (天体测量的) refers specifically to the techniques and methods used in this discipline. Understanding astrometric measurements is essential for astronomers as they seek to map the universe and comprehend its structure. Astrometry has a rich history dating back to ancient civilizations, where early astronomers would observe the night sky and record the positions of stars. These observations laid the groundwork for modern astrometric techniques, which have evolved significantly over the centuries. Today, advanced technology, such as space telescopes and satellite systems, allows for highly accurate measurements that were once impossible. One of the primary applications of astrometric measurements is in the determination of stellar parallax, which is the apparent shift in position of a star when viewed from different points in Earth's orbit around the Sun. By measuring this shift, astronomers can calculate the distance to the star, providing invaluable data for understanding the scale of the universe. Additionally, astrometric techniques are vital for tracking the motion of celestial bodies, including the orbits of planets and the paths of comets. The importance of astrometric measurements extends beyond mere distance calculations. They play a critical role in the search for exoplanets—planets located outside our solar system. By observing the astrometric wobble of stars caused by the gravitational pull of orbiting planets, scientists can infer the presence of these distant worlds. This method has led to the discovery of thousands of exoplanets, expanding our understanding of planetary systems and the potential for life beyond Earth. Moreover, astrometric data is essential for studying the dynamics of our own solar system. For instance, the precise tracking of asteroids and comets helps predict their trajectories and assess any potential threats to Earth. As technology continues to advance, the accuracy of astrometric measurements will only improve, allowing for even more detailed studies of celestial mechanics. In conclusion, the field of astrometry and its associated astrometric techniques are fundamental to our understanding of the universe. From determining the distances to stars to discovering new planets, the impact of astrometric measurements is profound. As we continue to explore the cosmos, the importance of precise measurements cannot be overstated. The future of astronomy relies heavily on the advancements in astrometric methods, paving the way for new discoveries and a deeper understanding of the universe we inhabit.

在广阔的天文学领域，最关键的方面之一是测量天体的位置和运动。这一研究领域被称为天体测量学，它涉及精确计算以确定恒星、行星和其他天体的位置和距离。术语astrometric（天体测量的）特指在这一学科中使用的技术和方法。理解astrometric测量对天文学家至关重要，因为他们寻求绘制宇宙地图并理解其结构。天体测量学有着悠久的历史，可以追溯到古代文明，当时的早期天文学家会观察夜空并记录恒星的位置。这些观察为现代astrometric技术奠定了基础，这些技术在几个世纪中发生了显著变化。如今，先进的技术，如太空望远镜和卫星系统，使得进行高度准确的测量成为可能，这在过去是无法实现的。Astrometric测量的主要应用之一是确定恒星视差，即在从地球绕太阳的不同点观察时，恒星位置的表观变化。通过测量这种变化，天文学家可以计算出到恒星的距离，为理解宇宙的规模提供了宝贵的数据。此外，astrometric技术对于追踪天体的运动至关重要，包括行星的轨道和彗星的路径。Astrometric测量的重要性不仅限于距离计算。它们在寻找系外行星（位于我们太阳系之外的行星）中发挥着关键作用。通过观察恒星因环绕行星的引力而产生的astrometric摆动，科学家们可以推断这些遥远世界的存在。这种方法已导致数千个系外行星的发现，扩展了我们对行星系统及其潜在生命的理解。此外，astrometric数据对于研究我们自己太阳系的动力学至关重要。例如，精确跟踪小行星和彗星有助于预测它们的轨迹并评估对地球的潜在威胁。随着技术的不断进步，astrometric测量的准确性只会提高，从而允许对天体力学进行更详细的研究。总之，天体测量学领域及其相关的astrometric技术是我们理解宇宙的基础。从确定恒星的距离到发现新行星，astrometric测量的影响深远。随着我们继续探索宇宙，精确测量的重要性不可低估。天文学的未来在很大程度上依赖于astrometric方法的进步，为新的发现和对我们所居住的宇宙的更深理解铺平了道路。