Psi-2

Variable star

Its story

Psi-2 Aquarii is a variable of the peculiar Lambda Eridani type: a blue star spinning at 341 km/s and pulsing every twenty-six hours with an almost imperceptible rhythm. Centrifugal force deforms it and tears a faint veil of gas from its equator. Its light crossed four centuries before reaching the celestial Water-Bearer.

Constellation: Aquarius
Apparent magnitude: 4.41
Distance: 401.7 light years
Coordinates (J2000): RA 349.476° · Dec -9.183°
Catalogue: HIP 115033 · HD 219688

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