Star in the constellation Canes Venatici
24 Canum Venaticorum is a single star in the northern constellation of Canes Venatici , located 277 light years away from the Sun. This object is visible to the naked eye as a faint white-hued star with an apparent visual magnitude of +4.68. It is moving closer to the Earth with a heliocentric radial velocity of −18 km/s.
This is an A-type main-sequence star with a stellar classification of A4 V, and it is a shell star with rotationally-broadened lines . It is 310 million years old with a projected rotational velocity of 159 km/s. This rate of spin is giving the star an oblate shape with an equatorial bulge that is 7% larger than the polar radius. The star has 1.74 times the mass of the Sun and 1.9 times the Sun's radius . It is radiating 41 times the Sun's luminosity from its photosphere at an effective temperature of 8,285 K.
24 Canum Venaticorum displays a significant infrared excess at wavelengths of 24μm and 70μm, indicating an orbiting circumstellar debris disk . The signature matches a black body temperature of 464 K for an estimated orbital radius of 1.4 AU .
References
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