Magnitude 5.159 Apparent magnitude (V) 5.159 | Constellation Equuleus | |
People also search for 9 Equulei, Delta Equulei, Epsilon Equulei | ||
Beta Equulei (Beta Equ, β Equulei, β Equ) is the Bayer designation for a solitary star in the northern constellation of Equuleus. It is faintly visible to the naked eye with an apparent visual magnitude of 5.15. The annual parallax shift is 24.55 mas, indicating a separation of around 133 light years from the Sun.
This is an ordinary A-type main sequence star with a stellar classification of A3 V. It has about four times the radius of the Sun and an effective temperature of about 9,000 K. The star is around 600 million years old and is spinning with a projected rotational velocity of 58 km/s. The star emits an infrared excess indicating the presence of a dusty debris disk. The mean temperature of the dust is 85 K, indicating the semimajor axis of its orbit is 104 AU.
β Equulei has four optical companions. They are not physically associated with the star described above.