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14 Arietis

Star in the constellation Aries

Summary

Star in the constellation Aries

| r-i = | v-r = | b-v = +0.33 | u-b = +0.15

14 Arietis (abbreviated 14 Ari) is a star in the constellation of Aries. 14 Arietis is the Flamsteed designation. It has an apparent visual magnitude of 4.98, which means it is visible to the naked eye. Based upon a measured annual parallax shift of 11.30 mas, is it located at a distance of approximately 290 ly, give or take a 30 light-year margin of error.

This is an astrometric binary system. The primary has a stellar classification of F2 III, suggesting that it is a giant star. Despite being an evolved star with four times the radius of the Sun, it is spinning rapidly with a projected rotational velocity of 139.6 km/s. This is causing a pronounced equatorial bulge, with the radius of the star along the equator being 24% greater than the radius at the poles. The star shines at 32 times the luminosity of the Sun, with this energy being radiated from its outer atmosphere at an effective temperature of 6,761 K. This heat gives it the yellow-white hued glow of an F-type star.

References

References

  1. van Leeuwen, F.. (November 2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics.
  2. (January 2008). "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity". The Astronomical Journal.
  3. (1959). "Standard stars for spectral classification". Mount Stromlo Observatory Mimeogram.
  4. (July 1967). "Spectrophotometry of New Short-Period Variable Stars". Astrophysical Journal.
  5. (September 2008). "A catalogue of multiplicity among bright stellar systems". [[Monthly Notices of the Royal Astronomical Society]].
  6. "14 Ari".
  7. (July 2009). "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics". Astronomy and Astrophysics.
  8. (March 2012). "Interferometric observations of rapidly rotating stars". The Astronomy and Astrophysics Review.
  9. (December 21, 2004). "The Colour of Stars". [[Commonwealth Scientific and Industrial Research Organisation]].
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This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

flamsteed-objects henry-draper-catalogue-objects hipparcos-objects bright-star-catalogue-objects f-type-giants aries-(constellation) astrometric-binaries durchmusterung-objects
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