Its story

HIP 21108 has a visual magnitude of about 6.77: it usually needs binoculars or a small telescope, especially from light-polluted sites.

Equatorial coordinates for HIP 21108: right ascension 4h 31m 24s, declination +40° 0′ 36″ (J2000), in the region of the Auriga constellation (IAU figure Aur).

HIP 21108. It appears in classical and modern catalogs as HIP 21108, HD 28503, Gaia DR3 179794310335362304. In the SkyKeepsake Auriga (Aur) browse hub it sits with other stars of the same IAU figure.