Al-Battani
He made significant improvements to Ptolemy's astronomical tables and accurately determined the length of the tropical year.
Most quoted
"Our fleeting existence on Earth is but a moment compared to the eternal cycles of the cosmos. Yet, in this brief span, we are granted the capacity to observe and understand."
— from Kitāb az-Zīj as-Sābi'
"The beauty of the night sky, with its countless luminaries, is a testament to the artistry of the divine, an invitation to contemplation and wonder."
— from Kitāb az-Zīj as-Sābi'
"The celestial spheres, in their intricate dance, reveal the order and majesty of the Creator. To study them is to glimpse the divine mind at work."
— from Kitāb az-Zīj as-Sābi'
All quotes by Al-Battani (382)
The movement of the celestial bodies is a testament to the unchanging laws that govern the universe.
To measure the heavens is to measure the vastness of God's creation.
Let our instruments be precise, and our minds be open to the truths they reveal.
The obliquity of the ecliptic is not constant, as some have believed, but undergoes a slow and subtle change.
Through careful observation, we can discern the true length of the tropical year, a fundamental constant for all astronomical calculations.
The apparent motion of the sun is not uniform, and this variation must be accounted for in our models.
Mathematics is the language of the heavens, and through it, we can decipher the secrets of the cosmos.
Do not fear to challenge established theories if your observations and calculations lead you to a different conclusion.
The shadow of the earth, cast upon the moon, provides a magnificent spectacle and a valuable opportunity for measurement.
The precession of the equinoxes is a slow but undeniable shift, influencing the positions of the stars over centuries.
Our duty is to observe, to calculate, and to record, so that future generations may build upon our work.
The true position of the sun's apogee is not fixed, but moves slowly through the zodiac.
Let us embrace the tools of trigonometry, for they unlock the complexities of spherical astronomy.
The stars are not merely points of light, but guides for navigation and markers of time.
To understand the universe is to understand a part of the divine wisdom.
The apparent diameter of the sun varies, a phenomenon that must be incorporated into our models of its motion.
We must always strive for greater precision in our instruments and our methods.
The moon's motion is complex, but through diligent observation, its intricate dance can be charted.
The shadows cast by the gnomon reveal the passage of time and the changing seasons.
Let our legacy be one of accurate data and sound theoretical frameworks.