Facts about Algieba

1. 07

   Orbital calculations suggest Algieba B completes one full revolution around Algieba A at a distance of approximately 73 astronomical units, comparable to Pluto's distance from our Sun.

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2. 06

   In 1782, William Herschel first resolved Algieba as a binary star system using his 40-foot telescope, making it one of the earliest discovered binary stars.

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3. 05

   Algieba A's luminosity exceeds the Sun's by approximately 34 times, making it one of the more luminous K-type giant stars visible from Earth.

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4. 04

   Around 4,850 Kelvin, Algieba A's surface temperature makes it significantly cooler than our Sun's 5,778 Kelvin photosphere.

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5. 03

   Algieba B, the secondary star in this binary system, is a yellow giant that orbits its companion star with a period of approximately 510 years.

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6. 02

   The primary star of this binary system, Algieba A, is a giant K-type star approximately 3.17 times the Sun's diameter with a surface temperature of 4,850 Kelvin.

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7. 01

   Approximately 126 light-years from Earth, Algieba is a binary star system in Leo with a combined visual magnitude of 2.61, making it the second-brightest star in the constellation.

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