Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · War Astrology: Yogas, Nakshatras
युद्धजयार्णवः (योगाः नक्षत्राणि)
नाडीत्रितयसंजुष्टग्रहाज्ज्ञेयं शुभाशुभम् ।चक्रं फणीश्वरं तत्तु त्रिनाडीपरिभूषितम् ॥ ५ ॥
In the full Agni Purana this is chapter 136, verse 5.
Good and bad are known from the planets on the three lines. That wheel is the Phanishvara chakra, marked with three lines.
Simple meaning: Planets sitting on the three lines show good and bad results.
रविभौमार्कराहुस्थमशुभं स्याच्छुभं परम् ।
A star with the Sun, Mars, Saturn or Rahu is bad, otherwise good. Country, brother and wife are read here.
अ भ कृ रो मृ आ पु पु आ म पू उ ह चि स्वा वि अ ज्ये मू पू उ श्र ध श पू उ रे ॥ ७ ॥
A short-form list of the 27 nakshatras in order, from Ashvini to Revati.
अत्र सप्तविंशतिनक्षत्राणि ज्ञेयानि ॥ ८ ॥
The list above stands for the 27 nakshatras.