Bet

Variable star

Its story

Beta Sextantis is the only notable blue-white star of its small constellation, the Sextant. It is an Alpha-2 Canum Venaticorum variable: its brightness drifts between magnitudes 5.00 and 5.10, possibly with a period near fifteen days, governed by magnetic spots that rotate with the star. About 405 light-years away, it offers a delicate pulse in a region of sky almost empty of landmarks.

Constellation: Sextans
Apparent magnitude: 5.08
Distance: 404.7 light years
Coordinates (J2000): RA 157.573° · Dec -0.637°
Catalogue: HIP 51437 · HD 90994

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