고래자리에서 가장 유명한 장주기 변광성의 원형이 되는 별.
A star in the constellation Cetus, regarded as the prototype of long-period variable stars.
예문:
"Mira is notable for its dramatic changes in brightness over a period of about 332 days."
"As the first variable star discovered that was not a supernova, Mira revolutionized stellar classification."
"Astronomers often observe Mira to study the late stages of stellar evolution."