practical astronomy

简明释义

实用天文学

英英释义

例句

1.For my project, I decided to explore practical astronomy 实用天文学 by tracking the phases of the moon over a month.

为了我的项目，我决定通过跟踪一个月内的月相来探索实用天文学 实用天文学。

2.Many amateur astronomers find practical astronomy 实用天文学 more rewarding than theoretical studies.

许多业余天文学家发现实用天文学 实用天文学比理论研究更有收获。

3.In our weekend workshop, we will cover the basics of practical astronomy 实用天文学, including how to use a telescope effectively.

在我们的周末工作坊中，我们将涵盖基本的实用天文学 实用天文学，包括如何有效使用望远镜。

4.The local observatory offers classes in practical astronomy 实用天文学 for families interested in stargazing.

当地的天文台为对观星感兴趣的家庭提供实用天文学 实用天文学课程。

5.The course on practical astronomy 实用天文学 helps beginners learn how to identify constellations and celestial events.

这门关于实用天文学 实用天文学的课程帮助初学者学习如何识别星座和天文事件。

作文

The term practical astronomy refers to the hands-on application of astronomical principles and techniques in observing celestial objects. Unlike theoretical astronomy, which focuses on the mathematical modeling and understanding of celestial phenomena, practical astronomy emphasizes the actual observation and measurement of these phenomena using telescopes, cameras, and various instruments. This field is essential for both amateur and professional astronomers who seek to explore the universe beyond the confines of textbooks and simulations.One of the key aspects of practical astronomy is the use of telescopes. Telescopes allow astronomers to see distant stars, planets, and galaxies that are not visible to the naked eye. There are various types of telescopes, including refractors, reflectors, and catadioptrics, each with its own advantages and disadvantages. Amateur astronomers often start with smaller telescopes, gradually upgrading to larger and more complex instruments as they gain experience and knowledge. The ability to observe celestial bodies directly provides a profound sense of connection to the universe, and it is often what inspires individuals to pursue a deeper understanding of astronomy.In addition to using telescopes, practical astronomy also involves engaging in activities such as astrophotography, which combines photography with the observation of celestial events. Astrophotography allows astronomers to capture stunning images of planets, star clusters, and nebulae, making it possible to share the beauty of the cosmos with others. This practice requires both technical skill and artistic vision, as well as an understanding of how to manipulate exposure times, focus, and other camera settings to achieve the best results. Many amateur astronomers take great pride in their astrophotography skills, often sharing their work online or in local astronomy clubs.Another important component of practical astronomy is the study of celestial events, such as eclipses, meteor showers, and planetary transits. These events provide unique opportunities for observation and data collection. For example, during a solar eclipse, the moon passes between the Earth and the sun, blocking the sun's light for a brief period. Observing such an event requires careful planning and preparation, including choosing a location with clear skies and ensuring proper safety measures are in place to protect one’s eyes from the sun’s harmful rays. The excitement of witnessing a celestial event firsthand can be exhilarating and often leads to a greater appreciation for the vastness of the universe.Moreover, practical astronomy fosters a sense of community among enthusiasts. Astronomy clubs and societies offer a platform for individuals to come together, share knowledge, and participate in group observations. These gatherings often feature guest speakers, workshops, and collaborative projects that enhance members' understanding of astronomy. The camaraderie built through shared experiences in observing the night sky can lead to lasting friendships and a supportive network for those passionate about the cosmos.In conclusion, practical astronomy is a vital aspect of the broader field of astronomy that allows individuals to engage directly with the universe. Through the use of telescopes, astrophotography, and participation in celestial events, both amateur and professional astronomers can deepen their understanding of the cosmos while fostering a sense of community. As technology continues to advance, the opportunities for exploration and observation will only expand, inviting more people to partake in the wonders of practical astronomy. Whether it is through the lens of a telescope or the click of a camera shutter, the pursuit of practical knowledge in astronomy is an enriching endeavor that connects us all to the universe we inhabit.

短语practical astronomy指的是在观察天体时对天文学原理和技术的实际应用。与专注于天体现象的数学建模和理解的理论天文学不同，practical astronomy强调使用望远镜、相机和各种仪器进行这些现象的实际观察和测量。这个领域对于希望超越教科书和模拟的局限，探索宇宙的业余和专业天文学家至关重要。practical astronomy的一个关键方面是望远镜的使用。望远镜使天文学家能够看到肉眼无法看见的遥远星星、行星和星系。望远镜有多种类型，包括折射望远镜、反射望远镜和复合望远镜，每种都有其优缺点。业余天文学家通常从较小的望远镜开始，随着经验和知识的增长逐渐升级到更大、更复杂的仪器。直接观察天体的能力提供了一种与宇宙的深刻联系，这往往激励个人追求对天文学的更深理解。除了使用望远镜，practical astronomy还涉及诸如天体摄影等活动，将摄影与天体事件的观察相结合。天体摄影使天文学家能够捕捉到行星、星团和星云的惊人图像，使得将宇宙之美分享给他人成为可能。这一实践需要技术技巧和艺术视野，以及对如何操控曝光时间、对焦及其他相机设置以获得最佳效果的理解。许多业余天文学家对自己的天体摄影技巧感到自豪，常常在网上或本地天文学俱乐部分享他们的作品。practical astronomy的另一个重要组成部分是研究天体事件，如日食、流星雨和行星过境。这些事件提供了独特的观察和数据收集机会。例如，在日食期间，月亮在地球和太阳之间经过，短暂地遮挡了太阳的光线。观察这样的事件需要仔细的计划和准备，包括选择一个晴朗的地点并确保采取适当的安全措施以保护眼睛免受太阳有害光线的伤害。亲眼目睹天体事件的兴奋感令人振奋，往往会导致对宇宙广袤的更大欣赏。此外，practical astronomy在爱好者之间培养了一种社区意识。天文学俱乐部和协会为个人提供了一个聚集在一起、分享知识和参与集体观察的平台。这些聚会通常会邀请嘉宾演讲、举办研讨会和开展合作项目，以增强成员对天文学的理解。通过共享观察夜空的经历建立的友谊可以导致持久的友谊和对宇宙充满热情的人的支持网络。总之，practical astronomy是更广泛的天文学领域中的一个重要方面，它使个人能够直接与宇宙接触。通过使用望远镜、天体摄影和参与天体事件，业余和专业天文学家都可以加深对宇宙的理解，同时培养一种社区意识。随着技术的不断进步，探索和观察的机会只会扩大，邀请更多的人参与practical astronomy的奇迹。无论是通过望远镜的镜头还是相机快门的点击，追求天文学的实际知识都是一种丰富的努力，将我们所有人连接到我们所居住的宇宙。