To acquire ASTR, the initial step is to create an account on the Binance exchange. Following successful registration, you will need to deposit either cryptocurrency or fiat currency into your Binance account wallet. Once your funds are available, you can proceed to purchase ASTRCoin from any of the listed trading pairs. If you choose to buy through the ASTR/USDT trading pair, navigate to its interface. Input the quantity you intend to purchase in the limit section of the ASTR/USDT interface. After entering the amount, finalize your transaction by placing a buy order for ASTR.