hip-3572

Variable star

Its story

21 Cassiopeiae is a white A-type variable 303 light-years away, set into the starry W of Cassiopeia —one of the easiest figures to spot in the northern sky. Its brightness wavers slightly, marked by internal pulsations. The constellation, lying across the Milky Way, offers any observer a dense backdrop of stars and clusters.

Constellation: Cassiopeia
Apparent magnitude: 5.64
Distance: 303.4 light years
Coordinates (J2000): RA 11.413° · Dec 74.988°
Catalogue: HIP 3572 · HD 4161

Take your star to the gift that suits you best.

Choose a tier

Symbolic commemorative gift — no ownership, no IAU recognition.