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98 Aquarii
98 Aquarii is the Flamsteed designation for a star in the equatorial constellation Aquarius. The Bayer designation for this star is b1 Aquarii. It is visible to the naked eye with an apparent visual magnitude of +3.97.〔 The distance to this star, , is known from parallax measurements made with the Hipparcos spacecraft.〔 With over double the mass of the Sun,〔 this is an evolved giant star that has a stellar classification of K0 III.〔 The measured angular diameter of this star is .〔 At the estimated distance of 98 Aquarii,〔 this yields a physical size of about 14 times the radius of the Sun.〔 The expanded outer envelope has an effective temperature of 4,630 K,〔 giving it the orange glow of a K-type star.〔 ==References== } \\ & \approx 27.4\cdot R_ \end〕
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