Its story

HIP 15990 has a visual magnitude of about 8.26: it usually needs binoculars or a small telescope, especially from light-polluted sites.

Equatorial coordinates for HIP 15990: right ascension 3h 25m 58s, declination −50° 48′ 8″ (J2000), in the region of the Horologium constellation (IAU figure Hor).

HIP 15990. It appears in classical and modern catalogs as HIP 15990, HD 21505, Gaia DR3 4737247879793979392. In the SkyKeepsake Horologium (Hor) browse hub it sits with other stars of the same IAU figure.