Rig Veda I.155 is dedicated to Indra/Vishnu. Rig Veda I.155.6 says as follows:
चतुर्भिः साकं नवतिं च नामभिश्चक्रं न वर्त्तं वयतीन्रवीविपत | बर्हच्छरीरो विमिमान रक्वभिर्युवाकुमारः परत्येत्याहवम ||
caturbhiḥ sākaṃ navatiṃ ca nāmabhiścakraṃ na vṛttaṃ vyatīnravīvipat | bṛhaccharīro vimimāna ṛkvabhiryuvākumāraḥ pratyetyāhavam ||
He, like a rounded wheel, hath in swift motion set his ninety racing steeds together with the four. Developed, vast in form, with those who sing forth praise, a youth, no more a child, he cometh to our call.
"With four times ninety names (caturbhiḥ sākaṃ navatiṃ ca nāmabhih), he (Vishnu/Indra) sets in motion moving forces like a turning wheel (cakra)."
This suggests that even in Vedic times Vishnu/Indra had 360 names or forms, one for each degree of the zodiac.
Further, it talks about a youth, who emerged on the call of the seers.
Can anyone furnish the details of those names and the youth in question? References from subsequent literature, ie, brAhmanas/Upanishads/EPICs, with references, to Veda will be accepted.