Jataka Tattva · by Mahadeva
Chapter 1 · Basic Terms and Definitions
संज्ञातत्वम्
दिने वारारम्भादस्तकालो निशयस्ततो वारप्रवेशकालान्तः स्ववारखण्डेन हतोऽष्टभक्तो लब्धं गुलिकेष्टकालः ।
By day, take the time from the start of the weekday to sunset. By night, take the time from sunset to the end of the weekday. Multiply it by the part belonging to that weekday. Divide by eight. The result is the wanted time of Gulika (son of Saturn, a shadow point).
तत्काललग्नतुल्यो गुलिकः
Gulika (son of Saturn, a shadow point) is the same as the lagna (rising sign) at that time.
दिनेऽर्काद्रात्रौ ज्ञान्नगाङ्गपञ्चाब्धित्रिनेत्रेन्दुमिता गुलिकखण्डाः
The Gulika (son of Saturn, a shadow point) parts are: 7; 6; 5; 4; 3; 2; 1. By day, count from the Sun's day. By night, count from Mercury's day.
अन्योन्यदृष्टौ एकतरदृष्टौ अन्योन्यस्थानस्थितावेकत्र स्थितौ वा सम्बन्धोऽवगन्तव्यः ।
A link between two planets is known in these ways. Both look at each other. Or one looks at the other. Or each stands in the other's sign. Or both…