Its story

HIP 20817 has a visual magnitude of about 9.19: it is a telescope star and remains difficult or invisible to the naked eye even in good conditions.

Equatorial coordinates for HIP 20817: right ascension 4h 27m 38s, declination +32° 50′ 54″ (J2000), in the region of the Auriga constellation (IAU figure Aur).

HIP 20817. It appears in classical and modern catalogs as HIP 20817, HD 28135, Gaia DR3 172462491922346112. In the SkyKeepsake Auriga (Aur) browse hub it sits with other stars of the same IAU figure.