In a Mahayuga, the circle of stars oscillates eastward 600 times.
Modern Technical Commentary:
Establishes the Trepidation Theory of Precession. Rather than a continuous 25,700-year cycle, the Siddhanta models precession as a swinging motion of 27° in either direction. 600 cycles in a Mahayuga implies an annual rate of 54 seconds of arc.
In a Mahayuga, the circle of stars oscillates eastward 600 times.
Modern Technical Commentary:
Establishes the Trepidation Theory of Precession. Rather than a continuous 25,700-year cycle, the Siddhanta models precession as a swinging motion of 27° in either direction. 600 cycles in a Mahayuga implies an annual rate of 54 seconds of arc.
Describes precession not as a continuous cycle,
but as a libration (oscillation) of 27° in each direction.
600 revolutions per Mahayuga implies a total range of 54° over
several thousand years.
Parameters
date: Date
Current date
Returns number
Offset in degrees according to traditional formula
traditional Surya Siddhanta Libratory Precession (Ayana-chalana).
[Ch. III, v.9-12]
Siddhantic Proof: Tri-Prasna (Shadows & Direction) v.9
Sanskrit (Devanagari):
त्रिंशत्कृत्यो युगे भानां चक्र प्राक्परिलम्बते । तद्रुणाद्भूदिनैर्भक्ताद् युगणाद्यदवाप्यते ॥
Translation (Burgess):
In a Mahayuga, the circle of stars oscillates eastward 600 times.
Modern Technical Commentary:
Establishes the Trepidation Theory of Precession. Rather than a continuous 25,700-year cycle, the Siddhanta models precession as a swinging motion of 27° in either direction. 600 cycles in a Mahayuga implies an annual rate of 54 seconds of arc.
Siddhantic Proof: Tri-Prasna (Shadows & Direction) v.9
Sanskrit (Devanagari):
त्रिंशत्कृत्यो युगे भानां चक्र प्राक्परिलम्बते । तद्रुणाद्भूदिनैर्भक्ताद् युगणाद्यदवाप्यते ॥
Translation (Burgess):
In a Mahayuga, the circle of stars oscillates eastward 600 times.
Modern Technical Commentary:
Establishes the Trepidation Theory of Precession. Rather than a continuous 25,700-year cycle, the Siddhanta models precession as a swinging motion of 27° in either direction. 600 cycles in a Mahayuga implies an annual rate of 54 seconds of arc.
600 revolutions per Mahayuga implies a total range of 54° over several thousand years.