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HD 22663

Star in the constellation Eridanus

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HD 22663 (y Eridani) is a candidate astrometric binary star system in the equatorial constellation of Eridanus. It is visible to the naked eye with an apparent visual magnitude of 4.57. Based upon an annual parallax shift of , it is located around 247 light years from the Sun. It is moving further away from the Earth with a heliocentric radial velocity of +11.5 km/s, having come within 43.20 pc some 3.76 million years ago.

The visible component is an orange-hued giant star with a stellar classification of K1 III, having exhausted the hydrogen at its core and evolved away from the main sequence. It has an estimated 1.4 times the mass of the Sun and has expanded to 13 times the Sun's radius. At the age of 2.6 billion years, this star is radiating 95 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,660 K.

References

"HD 22663".
{{cite Gaia DR3. 4850012314870132096
{{cite XHIP. 16870

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k-type-giants astrometric-binaries eridanus-(constellation) bayer-objects durchmusterung-objects henry-draper-catalogue-objects hipparcos-objects bright-star-catalogue-objects

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