Its story

HIP 21789 has a visual magnitude of about 8.65: it is a telescope star and remains difficult or invisible to the naked eye even in good conditions.

Equatorial coordinates for HIP 21789: right ascension 4h 40m 49s, declination −62° 48′ 3″ (J2000), in the region of the Reticulum constellation (IAU figure Ret).

HIP 21789. It appears in classical and modern catalogs as HIP 21789, HD 30132, Gaia DR3 4677033572176334848. In the SkyKeepsake Reticulum (Ret) browse hub it sits with other stars of the same IAU figure.