Its story

HIP 81840 has a visual magnitude of about 6.17: it usually needs binoculars or a small telescope, especially from light-polluted sites.

Equatorial coordinates for HIP 81840: right ascension 16h 42m 59s, declination +55° 41′ 26″ (J2000), in the region of the Draco constellation (IAU figure Dra).

HIP 81840. It appears in classical and modern catalogs as HIP 81840, HD 151199, Gaia DR3 1427435133900756480. In the SkyKeepsake Draco (Dra) browse hub it sits with other stars of the same IAU figure.