Epoch J2000.0 Equinox J2000.0 (ICRS)
|Right ascension||02h 22m 21.43510s |
|Declination||+55° 50′ 44.3472″ |
9 Persei is a pulsating variable star in the constellation Perseus. Its apparent magnitude is 5.21. Located around 1,000 parsecs (3,300 ly) distant, it is an blue supergiant of spectral type A2Ia, a massive star that has used up its core hydrogen and is now fusing heavier elements.
- "V474 Persei". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 25 December 2013.
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