Its story

HIP 12840 has a visual magnitude of about 8.34: it usually needs binoculars or a small telescope, especially from light-polluted sites.

Equatorial coordinates for HIP 12840: right ascension 2h 45m 4s, declination +58° 33′ 5″ (J2000), in the region of the Cassiopeia constellation (IAU figure Cas).

HIP 12840. It appears in classical and modern catalogs as HIP 12840, HD 236995, Gaia DR3 463988100127727872. In the SkyKeepsake Cassiopeia (Cas) browse hub it sits with other stars of the same IAU figure.