Its story

HIP 15639 has a visual magnitude of about 9.13: it is a telescope star and remains difficult or invisible to the naked eye even in good conditions.

Equatorial coordinates for HIP 15639: right ascension 3h 21m 22s, declination +52° 30′ 29″ (J2000), in the region of the Perseus constellation (IAU figure Per).

HIP 15639. It appears in classical and modern catalogs as HIP 15639, HD 232780, Gaia DR3 443034092860020352. In the SkyKeepsake Perseus (Per) browse hub it sits with other stars of the same IAU figure.