Hadrian, Emperor 117-138 AD, Roman Imperial Denarius
Minted in Rome in 127 AD this symbol may comemorate the eclipse of 121 AD and 125 AD in the Eastern Mediterranean. The above coin is likely a symbolic representation of a solar eclipse that may be brief in nature. Multiple stars are likely flashes of light as one is looking at a partial solar eclipse that the moon is transiting quickly over the sun.
Photo from Athena Numismatics