Its story

HIP 20557 has a visual magnitude of about 7.01: it usually needs binoculars or a small telescope, especially from light-polluted sites.

Equatorial coordinates for HIP 20557: right ascension 4h 24m 15s, declination +21° 44′ 10″ (J2000), in the region of the Taurus constellation (IAU figure Tau).

HIP 20557. It appears in classical and modern catalogs as HIP 20557, HD 27808, Gaia DR3 145373377272257664. In the SkyKeepsake Taurus (Tau) browse hub it sits with other stars of the same IAU figure.