Historical background

The evolution of astrolabe drawing

Star map important points

歷史背景

星盤繪製的演變

星圖要點

Astrology and astronomy were inseparable in ancient times. About 500 years ago, the two disciplines were originally one. In ancient times, the main motivation for observing celestial phenomena was for the purpose of astrology, and no one observed celestial phenomena purely for science. Same sky, different perspectives: Astrology and astronomy both study the sky, but from different starting points. Astrology focuses on the impact of celestial bodies on human destiny, while astronomy focuses on the movement and properties of celestial bodies themselves. However, after the scientific revolution, the two went their separate ways. Scientists began to regard astrology as superstition, and astronomy gradually became an independent natural science. Astrology, on the other hand, tended to be a humanistic art. However, at that time, famous scientists such as Copernicus, Galileo, and Newton were all proficient in astrology in their early years, reflecting the close connection between the two at that time. Today, most astronomers no longer study astrology, but astrologers still need to have knowledge of astronomy in order to accurately calculate the positions of stars.

占星學與天文學在古代是密不可分，約五百年前，這兩門學科本為一體。古時候，觀測天象的主要動機就是為了占星，並沒有人單純為了科學而觀測天象。同一片天空，不同觀點：占星學和天文學都以天空為研究對象，但出發點不同。占星學關注天體對人類命運的影響，天文學則專注於天體本身的運行和性質。但是，科學革命後，兩者分道揚鑣，科學家開始將占星學視為迷信，天文學逐漸成為獨立的自然科學。而占星學便趨向一種人文藝術性質。不過，那個時刻，著名科學家哥白尼、伽利略、牛頓等科學巨擘，早年都精通占星學，反映出當時兩者的密切關聯。現今大多數天文學家已不再研究占星學，但占星學家仍需具備天文學知識，以便精確計算星體位置。

In ancient times, drawing an accurate astrolabe required complex calculations, which was time-consuming and laborious. In modern times, computer technology has greatly simplified the process, and a astrolabe can be automatically generated by simply inputting data.

Astrology is based on the positions of planets, nodes, and other celestial bodies obtained through astronomical observation and calculation. Astronomy is the scientific observation, theory, and mathematical operation that explores the movement and properties of celestial bodies. Astrology is the interpretation of the celestial bodies' influence on individuals. The impact of events depends on astronomical observations and astrological calculations.

In simple terms, to learn astrology, one must master the basics of astronomy and understand the distribution and interrelationship of planets in constellations and houses. Although astrology and astronomy are now different fields, they have an inseparable origin in history. The development of astrology is based on astronomical observations and calculations, and to learn astrology, one must also have certain astronomical knowledge. The two can be said to be exploring the universe from different angles under the same sky.

Example:The season of birth determines the sign of the sun (Aries are always born in spring).) The house where the sun is located is determined by the time of birth (the sun must be in10 house). Therefore, the sun can be said to be the most important star in the horoscope, representing vitality, and accounting for almost one-third of the entire horoscope's destiny.

The angles of the sun and moon can be known from the lunar date of birth (Lunar calendar 15. People born on the day of the month must be180 degree. The moon is also an important star in the horoscope, representing the inner emotions. Together with the rising point and the mid-heaven point, these four key points are the most important parts to interpret the horoscope.

在古代繪製精確星盤需進行繁複計算，耗時費力。到了現代，電腦技術大幅簡化流程，只需輸入資料即可自動生成星盤。占星學的推算依據，是以天文觀測和計算得出的行星、交點等天體位置。天文學是科學觀測、理論與數學運算，探索天體本身的運行與性質。占星學是解讀天體對個人/事件的影響，依賴天文觀測與命理推算。

簡單而言，學習占星學必須掌握天文學基礎，了解行星在星座、宮位上的分布與相互關聯。占星學與天文學雖然在現代已屬於不同領域，但兩者在歷史上有著不可分割的淵源。占星學的發展奠基於天文學的觀測與計算，而學習占星學也必須具備一定的天文知識。兩者可說是在同一片天空下，以不同的角度探索宇宙。

舉例-出生的季節決定了太陽所處的星座（牡羊座一定是春天出世)，而從出生的時刻決定了太陽所在的宫位（正午出生的人太陽一定在10宮），因此，太陽可以說是星盤中最重要的一顆星，代表著生命力，幾乎占整個星盤算命運重要的三分之一。

從出生時農曆的日子，就可以知道太陽與月亮的角度（農曆15日出生的人日月位置必呈現出180度角），月亮也是星盤中重要的一顆星，代表著內在的情緒。再加上東昇點與中天點，這四個重點是解讀星盤最重視的部份。