Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 6 · Calendar, Muhurta Elements
कालमानं मुहूर्ताङ्गानि च
भूकंपः सूर्यभात्सप्तमर्क्षे विद्युच्च पंचमे ।शूलोऽष्टमे च दशमे शनिरष्टादशे ततः ॥ २३० ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 230.
Count from the Sun's star. The 7th star is Earthquake. The 5th is Lightning. The 8th is Spear, and the 10th Thunderbolt. Then the 18th...
Simple meaning: Counting from the Sun's star, some stars carry bad omen names: Earthquake, Lightning, Spear and Thunderbolt.
केतुः पंचदशे दंड उल्का एकोनविंशतौ ।
Counting on: Ketu is the 18th, Danda the 15th, Ulka the 19th, Nirghatapata the 14th.
मोहनिर्घातकं पाश्च कुलिशं परिवेषणम् ।
From the 21st star on, five more omens follow in order.
चन्द्रयुक्तेषु भेष्वेषु शुभकर्म न कारयेत् ।
No good act when the Moon is in these omen stars. A count from the Sun's star begins.