Found 4 exchanges where Astar is traded for EUR. According to the data on 29 August the most optimal price to exchange ASTR for EUR is €0.0047 for 1 Astar. This rate is fixed at Kraken at the maximum trading volume of the pair ASTR/EUR - 7.8 ths. EUR.
The maximum daily trading volume is observed in the ASTR/USDT trading pair at WEEX and reaches € 248 646.9 (0.01% of the exchange's total trading volumes) at the price € 0.0047 per 1 ASTR.
The minimum price to buy ASTR for EUR is 0.0046 - on the exchange WhiteBIT.
The maximum price to buy ASTR/EUR is 0.005 - on the exchange Bit2Me.
Warning: some ASTR markets show an abnormally wide spread — those quotes may be unreliable (thin liquidity or off-market trades). Cross-check the volume against several venues.