Rishi: Traditional: associated with solar laudatory strata; in VS book-33 context often treated as Aśvamedha-mantra tradition rather than a single ṛṣi attribution.
Devata: Sūrya/Āditya
Chandas: Mixed/prose-nigada style with ṛgvedic cadence; not a strict single chandas in this transmitted form.
baṇ-mahā́m̐ asi sū́rya baḍā́ditya mahā́m̐ asi | mahás te sató mahimā́ panasyate’ddhā́ deva mahā́m̐ asi
Translation
Grande eres tú, oh Sūrya; grande eres tú, oh Āditya. Grande es tu majestad, la del Ser real; en verdad es celebrada. Ciertamente, oh dios, eres grande.