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44 Aquarii

Star in the constellation Aquarius

Star in the constellation Aquarius

| b-v=+0.88 | u-b=+0.51

44 Aquarii is a single star located 336 light years away from the Sun in the equatorial constellation of Aquarius. 44 Aquarii is its Flamsteed designation. It is visible to the naked eye as a dim, yellow-hued star with an apparent visual magnitude of 5.75. This body is moving away from the Earth with a heliocentric radial velocity of +7.4 km/s.

A stellar classification of G6 III indicates this is an evolved giant star, most likely (98% chance) on the horizontal branch, having exhausted the hydrogen at its core and expanded. It is a suspected variable star of unknown type. 44 Aquarii is 537 million years old with about 2.53 times the mass of the Sun and 9 times the Sun's radius. The star is radiating 62 times the Sun's luminosity from its photosphere at an effective temperature of 5,025 K. At this heat, the star has the golden-hued glow of a G-type star.

References

| display-authors=1 | last1=Stock | first1=Stephan

| display-authors=1 | last1=Samus | first1=N. N.

References

  1. {{cite DR2. 2626111784104743936
  2. van Leeuwen, F.. (November 2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics.
  3. (1999). "Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions". Astronomisches Rechen-Institut Heidelberg.
  4. (1966). "UBVRIJKL photometry of the bright stars". Communications of the Lunar and Planetary Laboratory.
  5. (June 2010). "The PASTEL catalogue of stellar parameters". Astronomy and Astrophysics.
  6. (August 2008). "Stellar Parameters and Elemental Abundances of Late-G Giants". Publications of the Astronomical Society of Japan.
  7. "* 44 Aqr".
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g-type-giants horizontal-branch-stars suspected-variables aquarius-(constellation) durchmusterung-objects flamsteed-objects henry-draper-catalogue-objects hipparcos-objects bright-star-catalogue-objects
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