Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 5 · Portents, Comets
ग्रहचारः केतवश्च
ग्रीष्मश्चापांडुरश्चैव विचित्रो जलदागमे ।पद्मोदराभः शरदि हेमंते लोहितच्छविः ॥ ९ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 9.
In summer the Sun is pale white. In the rains it is many-coloured. In autumn it looks like the inside of a lotus. In early winter it is shining red.
Simple meaning: The Sun has a set colour in each season, such as many colours in the rains.
पीतः शीते सिते वृष्टौ ग्रीष्मे लोहितभा रविः ।
A yellow, white or red Sun in these seasons can bring illness, drought and fear in that order.
इन्द्रचापार्द्धमूर्तिस्तु भानुर्भूपविरोधकृत् ।
A half-rainbow Sun brings strife among kings. A hare-blood-red Sun means a battle soon.
मयूरपत्रसंकाशो द्वादशाब्दं न वर्षति ।
A peacock-feather Sun means no rain for twelve years. A Moon-like Sun can bring a change of king.