3 Equulei

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Template:Short description Template:Starbox begin Template:Starbox image Template:Starbox observe Template:Starbox character Template:Starbox astrometry Template:Starbox detail Template:Starbox catalog Template:Starbox reference Template:Starbox end 3 Equulei is a single[1] star located in the small northern constellation of Equuleus. It is faintly visible to the naked eye at an apparent visual magnitude of 5.6.[2] Based upon an annual parallax shift of 4.24 mas,[3] 3 Equulei is roughly Template:Convert distant from Earth, give or take an 80 light-year margin of error. At that distance, the apparent brightness of the star is diminished by 0.15 in visual magnitude because of extinction from interstellar gas and dust.[4]

3 Equulei has been referred to in some sources as ζ (Zeta) Equulei, although it was not given that designation by Bayer.[5]

Properties

3 Equulei is an evolved giant star with a stellar classification of K5 III.[1] The measured angular diameter of this star, after correction for limb darkening, is Template:Nowrap.[6] At the estimated distance of 770 light-years,[3] this yields a physical size of about 63 times the radius of the Sun.[7] It is radiating an estimated 949[8] times the luminosity of the Sun from this expanded outer envelope at an effective temperature of 3,893 K.[9] At this heat, it shines with the orange-hued glow of a K-type star.[10]

References

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Template:Stars of Equuleus

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