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hip-77442
Variable starIts story
In the curved diadem of the Northern Crown pulses a white variable A-class star, in a region of sky whose light has been crossing enormous distance. Young variable A stars beat in rapid cycles, expanding and contracting in response to tensions of pressure and radiation; they are genuine cosmic metronomes with which astronomers measure the geometry of the universe.
- Constellation
- Corona Borealis
- Apparent magnitude
- 5.89
- Distance
- 326200.0 light years
- Coordinates (J2000)
- RA 237.143° · Dec 28.157°
- Catalogue
- HIP 77442 · HD 141527
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