Английская Википедия:7 Cancri

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Шаблон:Short description Шаблон:Starbox begin Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox detail Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:Starbox end

7 Cancri (7 Cnc) is a giant star in the constellation Cancer. Its apparent magnitude is 6.84 and it is about Шаблон:Val away.

The annual parallax of 7 Cancri determined from the Hipparcos satellite mission is Шаблон:Val, giving a distance of Шаблон:Val with an 11.5% margin of error.[1] The more recent and more accurate Gaia Data Release 3 contains a parallax of Шаблон:Val, resulting in a closer distance of Шаблон:Val. Based on the Gaia distance, 7 Cancri has a bolometric luminosity 75 times that of the sun. Its temperature, based on its colour, is calculated to be Шаблон:Val and the resulting radius is Шаблон:Solar radius.[2]

7 Cancri is a cool giant star. It has evolved away from the main sequence after exhausting its core hydrogen and expanded so that it is larger and more luminous than the sun, although cooler. It is one of 220 Flamsteed stars that are too faint to have been included in the Bright Star Catalogue.[3]

References

Шаблон:Reflist

Шаблон:Stars of Cancer

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