Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 6 · Calendar, Muhurta Elements
कालमानं मुहूर्ताङ्गानि च
मित्रेन्दुत्वाष्ट्रहस्तेन्द्रादितिभांत्याश्विवायुभम् ।तिर्यङ्मुखाख्यं नवकं भानौ तत्र विधीयते ॥ १७३ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 173.
Mitra's, Indu's and Tvashtri's stars, Hasta, Indra's and Aditi's stars, the last star, and the Ashvins' and Vayu's stars: these nine face sideways. In them the following is done.
Simple meaning: Nine stars face sideways. The next verse names the work to do in them.
हलप्रवाहगमनं गंत्रीपत्रगजोष्ट्रकम् ।
Sideways stars suit ploughing, travel, carts, boats and work with animals.
ब्रह्मविष्णुमहेशार्यशततारावसूत्तराः ।
Nine stars face upward. The next verse names the work to do in them.
नृपाभिषेकमांगल्यवारणध्वजकर्मच ।
These stars suit a king's crowning, building palaces and gates, and auspicious rites.