On that weapon having been invoked, * and on (the god of fire) also having been worshipped, the firmament furnished with the suns and stars and planets was afflicted with affright. *i.e. on the deity presiding over that weapon, being invoked.
तस्मिन्नाहूयमानेऽस्त्रे हूयमाने च पावके। सार्कग्रहेन्दुनक्षत्रं वितत्रास नभःस्थलम्॥