Its story

HIP 28139 has a visual magnitude of about 5.60: under a reasonably dark sky it is typically reachable with the unaided eye.

Equatorial coordinates for HIP 28139: right ascension 5h 56m 50s, declination +11° 31′ 15″ (J2000), in the region of the Orion constellation (IAU figure Ori).

HIP 28139. It appears in classical and modern catalogs as HIP 28139, HD 40020, Gaia DR3 3342942066329410688. In the SkyKeepsake Orion (Ori) browse hub it sits with other stars of the same IAU figure.