Its story

HIP 21804 has a visual magnitude of about 9.23: it is a telescope star and remains difficult or invisible to the naked eye even in good conditions.

Equatorial coordinates for HIP 21804: right ascension 4h 41m 3s, declination +29° 43′ 40″ (J2000), in the region of the Auriga constellation (IAU figure Aur).

HIP 21804. It appears in classical and modern catalogs as HIP 21804, HD 282383, Gaia DR3 158181347705739008. In the SkyKeepsake Auriga (Aur) browse hub it sits with other stars of the same IAU figure.