Its story

HIP 81491 has a visual magnitude of about 7.63: it usually needs binoculars or a small telescope, especially from light-polluted sites.

Equatorial coordinates for HIP 81491: right ascension 16h 38m 41s, declination −1° 11′ 2″ (J2000), in the region of the Ophiuchus constellation (IAU figure Oph).

HIP 81491. It appears in classical and modern catalogs as HIP 81491, HD 150066, Gaia DR3 4382342431340370432. In the SkyKeepsake Ophiuchus (Oph) browse hub it sits with other stars of the same IAU figure.