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17 Monocerotis

Star in the constellation Monoceros

Star in the constellation Monoceros

| b-v = +1.40 | u-b = +1.65

17 Monocerotis is a single star located around 490 light years away from the Sun in the equatorial constellation of Monoceros. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.77. The star is moving away from the Earth with a heliocentric radial velocity of +46 km/s.

This is an aging giant star with a stellar classification of K4 III. As a consequence of having exhausted the supply of hydrogen at its core, the star has expanded to 25 times the radius of the Sun. It is radiating around 538 times the Sun's luminosity from its swollen photosphere at an effective temperature of 4,345 K.

References

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References

  1. {{cite DR2. 2991407583086382592
  2. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues.
  3. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H.
  4. (2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data". Astronomy & Astrophysics.
  5. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters.
  6. (2012). "Fundamental parameters and infrared excesses of ''Hipparcos'' stars". Monthly Notices of the Royal Astronomical Society.
  7. (1999). "A catalog of rotational and radial velocities for evolved stars". Astronomy and Astrophysics Supplement Series.
  8. (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics.
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