Its story

HIP 21604 has a visual magnitude of about 5.86: under a reasonably dark sky it is typically reachable with the unaided eye.

Equatorial coordinates for HIP 21604: right ascension 4h 38m 16s, declination +20° 41′ 5″ (J2000), in the region of the Taurus constellation (IAU figure Tau).

HIP 21604. It appears in classical and modern catalogs as HIP 21604, HD 29365, Gaia DR3 3411229847309096704. In the SkyKeepsake Taurus (Tau) browse hub it sits with other stars of the same IAU figure.