heliacal year

简明释义

偕日年

英英释义

例句

1.Many calendars around the world are influenced by the cycles of the heliacal year 恒星年.

世界上许多日历都受到heliacal year 恒星年 周期的影响。

2.Astronomers often calculate events based on the heliacal year 恒星年 to understand celestial patterns.

天文学家通常根据heliacal year 恒星年来计算事件，以理解天体模式。

3.The ancient Egyptians based their calendar on the rising of Sirius, marking the start of the new year in what they called the heliacal year 恒星年.

古埃及人基于天狼星的升起来制定他们的日历，标志着新年的开始，他们称之为heliacal year 恒星年。

4.The concept of the heliacal year 恒星年 helps us understand the relationship between the Earth and the stars.

heliacal year 恒星年 的概念帮助我们理解地球与星星之间的关系。

5.In ancient cultures, the heliacal year 恒星年 was crucial for agricultural planning and harvesting.

在古代文化中，heliacal year 恒星年 对农业规划和收获至关重要。

作文

The concept of a heliacal year is essential for understanding the ancient calendars and how civilizations tracked time based on celestial events. A heliacal year refers to the period it takes for the Sun to return to the same position relative to the stars, marking a complete cycle of seasons as experienced on Earth. This astronomical phenomenon occurs due to the Earth's orbit around the Sun and its axial tilt, which together create the seasonal changes we observe throughout the year.Historically, many ancient cultures relied on the heliacal year to establish their agricultural practices and religious festivals. For instance, the Egyptians observed the heliacal rising of Sirius, which coincided with the annual flooding of the Nile River. This event was crucial for their agriculture, as it signaled the time to plant crops. The appearance of Sirius in the dawn sky marked the beginning of their new year, illustrating the deep connection between astronomy and daily life.In contrast, modern calendars, such as the Gregorian calendar, are based on a solar year, which is approximately 365.24 days. While the solar year is a practical measure for organizing our lives, it does not account for the precise movements of the stars. The heliacal year, on the other hand, emphasizes the relationship between the Sun and the stars, providing a more holistic view of time that encompasses both solar and stellar cycles.Understanding the heliacal year also sheds light on the importance of astronomy in human history. Ancient astronomers meticulously observed the night sky, recording the positions of stars and planets. Their findings laid the groundwork for future scientific endeavors and enabled societies to navigate, predict seasonal changes, and align their activities with the cosmos. This knowledge was not merely academic; it had practical implications for survival and prosperity.Moreover, the study of the heliacal year has significant implications in contemporary astronomy. Modern scientists utilize advanced technology to track celestial bodies and understand their movements, contributing to our knowledge of the universe. This ongoing exploration echoes the curiosity of ancient civilizations, showing that the quest for knowledge about our place in the cosmos is timeless.In conclusion, the heliacal year represents more than just a measurement of time; it embodies the intricate relationship between humanity and the cosmos. By studying this concept, we gain insight into how ancient people perceived their world and organized their lives around celestial events. As we continue to explore the universe, the lessons learned from the heliacal year remind us of the enduring connection between astronomy and our daily existence. This connection serves as a testament to our shared heritage and the universal quest for understanding the mysteries of time and space.

“heliacal year”这个概念对于理解古代日历以及文明如何根据天文事件来追踪时间至关重要。heliacal year指的是太阳相对于恒星回到同一位置所需的时间，标志着地球上经历的季节循环的完整周期。这一天文现象是由于地球围绕太阳的轨道和其轴倾斜共同作用，创造了我们在一年中观察到的季节变化。历史上，许多古代文化依赖于heliacal year来建立农业实践和宗教节日。例如，埃及人观察到天狼星的晨昏升起，这与尼罗河的年度洪水相吻合。这个事件对他们的农业至关重要，因为它标志着播种的时间。天狼星在黎明天空中的出现标志着他们新年的开始，说明了天文学与日常生活之间的深刻联系。相比之下，现代日历，如公历，是基于太阳年，约为365.24天。虽然太阳年是组织我们生活的实用度量，但它并未考虑恒星的精确运动。而heliacal year则强调太阳与恒星之间的关系，提供了一种更全面的时间观，涵盖了太阳和恒星周期。理解heliacal year还使我们认识到天文学在历史上的重要性。古代天文学家仔细观察夜空，记录星星和行星的位置。他们的发现为未来的科学事业奠定了基础，使社会能够导航、预测季节变化，并将活动与宇宙对齐。这些知识不仅仅是学术性的；它对生存和繁荣具有实际意义。此外，研究heliacal year在当代天文学中也具有重要意义。现代科学家利用先进技术追踪天体并理解它们的运动，丰富了我们对宇宙的认识。这种持续的探索回响了古代文明的好奇心，表明对我们在宇宙中位置的知识追求是永恒的。总之，heliacal year不仅仅代表时间的测量；它体现了人类与宇宙之间错综复杂的关系。通过研究这一概念，我们获得了对古代人如何看待世界以及如何围绕天文事件组织生活的见解。当我们继续探索宇宙时，从heliacal year中学到的教训提醒我们，天文学与我们日常生活之间的持久联系。这种联系作为我们共同遗产的见证，以及对时间和空间奥秘的普遍追求。