Английская Википедия:42 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

42 Cancri is a single[1] star in the northern zodiac constellation of Cancer. With an apparent visual magnitude of 6.83,[2] it is dimmer than what is considered the normal lower limit for visibility with the naked eye. The star is located at a distance of approximately 616 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +35 km/s.[2] 42 Cancri is a member of the Beehive Cluster (NGC 2632).[1]

The stellar classification of this star is A7III,[3] matching an A-type star that is in the giant stage. However, this may be a misclassification of a main sequence star.[4] It has also been classified as a spectroscopic binary,[5] although no orbital elements are published. 42 Cancri is an estimated 603[6] million years old and is spinning rapidly with a projected rotational velocity of 195 km/s.[5] The star has 2.39 times the mass of the Sun and 4.2 times the Sun's radius.[6] It is radiating 51.5[7] times the luminosity of the Sun from its photosphere at an effective temperature of 7,607 K.[7]

References

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Шаблон:Stars of Cancer

  1. 1,0 1,1 Ошибка цитирования Неверный тег <ref>; для сносок Mason1993 не указан текст
  2. 2,0 2,1 Ошибка цитирования Неверный тег <ref>; для сносок Anderson2012 не указан текст
  3. Ошибка цитирования Неверный тег <ref>; для сносок Gray2001 не указан текст
  4. Ошибка цитирования Неверный тег <ref>; для сносок Clampitt1997 не указан текст
  5. 5,0 5,1 Ошибка цитирования Неверный тег <ref>; для сносок Treanor1960 не указан текст
  6. 6,0 6,1 Ошибка цитирования Неверный тег <ref>; для сносок Bochanski2018 не указан текст
  7. 7,0 7,1 Ошибка цитирования Неверный тег <ref>; для сносок GaiaDR2 не указан текст