Its story

HIP 81139 has a visual magnitude of about 9.50: it is a telescope star and remains difficult or invisible to the naked eye even in good conditions.

Equatorial coordinates for HIP 81139: right ascension 16h 34m 13s, declination +75° 58′ 58″ (J2000), in the region of the Ursa Minor constellation (IAU figure UMi).

HIP 81139. It appears in classical and modern catalogs as HIP 81139, Gaia DR3 1703379704562897408. In the SkyKeepsake Ursa Minor (UMi) browse hub it sits with other stars of the same IAU figure.