Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 5 · Portents, Comets
ग्रहचारः केतवश्च
ब्रह्मेन्द्विंद्रधनाधीशवरुणाग्नियमाह्वयाः ।पशुसस्यद्विजातीनां वृद्धिर्ब्राह्मे तु पर्वणि ॥ ८२ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 82.
They are named Brahma, Soma, Indra, Kubera, Varuna, Agni and Yama. In a Brahma parva (junction day), animals, crops and the twice-born grow.
Simple meaning: A junction day ruled by Brahma brings growth to animals, crops and the twice-born.
तद्वदेव फलं सौम्ये श्लेष्मपीडा च पर्वणि ।
A junction day of Soma gives much the same, with phlegm trouble. Indra's may bring quarrels and crop loss.
धनिनां धनहानिः स्यात्कौबेरं धान्यवर्धनम् ।
Kubera's eclipse costs the rich their money but grows grain. Varuna's harms kings but helps others.
प्रवर्षणं सस्यवृद्धिः क्षेमं हौताशपर्वणि ।
Agni's junction day brings rain and crops. Yama's brings drought and famine.