Translation guide
Alpha Ursae Minoris is the brightest star in the constellation Ursa Minor, commonly known as Polaris or the North Star. In Japanese, it is primarily referred to by its astronomical designation or its common name.
Referring to the star itself in astronomical or general contexts
The most common name for the North Star in Japanese, borrowed from English 'Polaris'. Used in everyday and scientific contexts.
Polaris is the brightest star in Ursa Minor.
Astronomical designation using the Greek letter alpha. Used in technical or scientific contexts.
Alpha Ursae Minoris is also known as Polaris.
Literally 'North Pole Star'. The traditional Japanese name for Polaris, widely understood.
The North Star appears to barely move.