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87 Leonis

Star in the constellation Leo

Star in the constellation Leo

| b-v = | u-b = +1.83 | r-i = +0.84

87 Leonis is a single star in the zodiac constellation of Leo, located approximately 495 light years away from Earth. It has the Bayer designation e Leonis; 87 Leonis is the Flamsteed designation. This object is visible by the naked eye as a faint orange-hued star with an apparent visual magnitude of 4.77. It is moving away from the Earth with a heliocentric radial velocity of 19 km/s. The star is positioned near the ecliptic and thus is subject to occultation by the Moon.

This is an aging K-type giant star with a stellar classification of K3+ III Fe−0.5, which means it has exhausted the hydrogen at its core and evolved away from the main sequence. The suffix notation indicates a mild underabundance of iron in the atmosphere. It has expanded to 52 times the Sun's radius and is radiating around 540 times the Sun's luminosity from its photosphere at an effective temperature of 3,852 K.

References

| display-authors=2 | last1=Dunham | first1=D. W.

| publication-place=New Haven, Conn. | access-date=2010-11-08 | postscript=. }}

References

  1. Soubiran, C.. (2024-02-01). "Gaia FGK benchmark stars: Fundamental Teff and log g of the third version". Astronomy and Astrophysics.
  2. "87 Leo".
  3. {{cite DR3. 3793247534517512064
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k-type-giants leo-(constellation) bayer-objects durchmusterung-objects flamsteed-objects henry-draper-catalogue-objects hipparcos-objects bright-star-catalogue-objects
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