Kap-1

Variable star

Its story

Kappa-1 Ceti is one of the most studied solar twins, just 30 light-years away —a G-type star much like our Sun but younger and faster-rotating. Its surface is marked by intense magnetic activity, with spots and flares that have made it a window into the Sun's own past. To look at it is to glimpse how our star shone when life was barely dawning on Earth.

Constellation: Cetus
Apparent magnitude: 4.84
Distance: 29.8 light years
Coordinates (J2000): RA 49.840° · Dec 3.370°
Catalogue: HIP 15457 · HD 20630

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