The term extragalactic nebula is identified in base64 scheme by the sequence ZXh0cmFnYWxhY3RpYyBuZWJ1bGE=, while the MD5 signature is equal to cccad8a764b4ff4478aacfacd416e38c. The ASCII encoding of extragalactic nebula in hexadecimal notation is 657874726167616c6163746963206e6562756c61.