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HD 217382

Star in the constellation Cepheus

Star in the constellation Cepheus

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HD 217382 is a suspected binary star system in the northern circumpolar constellation of Cepheus. It is faintly visible to the naked eye with an apparent visual magnitude of 4.70. The distance to HD 217382 is around 373 light years, as determined from an annual parallax shift of . The system is moving further away with a heliocentric radial velocity of +2.6 km/s. It is a candidate member of the Hyades supercluster and has a peculiar velocity of 9.2 km/s.

The visible component of this system is an evolved K-type giant star with a stellar classification of K4 III. It is a periodic variable with a frequency of a cycle every 10.64724 days and an amplitude of 0.0041 in magnitude. The star has an estimated 31 times the radius of the Sun and is radiating 286 times the Sun's luminosity from its enlarged photosphere at an effective temperature of about .

References

| display-authors=1 | last1=De Medeiros | first1=J. R.

| display-authors=1 | postscript=. | arxiv=astro-ph/0106537 | s2cid=55727428 }}

References

  1. "HD 217382".
  2. {{cite DR3. 2300042917875540992
  3. (2024). "Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost". Astronomy and Astrophysics.
  4. (2023). "Variability Catalog of Stars Observed during the TESS Prime Mission". The Astrophysical Journal Supplement Series.
  5. (2023). "Stellar ages, masses, extinctions, and orbital parameters based on spectroscopic parameters of Gaia DR3". Astronomy and Astrophysics.
  6. (2024). "Improving metallicity estimates for very metal-poor stars in the Gaia DR3 GSP-Spec catalog". Astronomy and Astrophysics.
  7. {{cite XHIP. 113116
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k-type-giants cepheus-(constellation) durchmusterung-objects henry-draper-catalogue-objects hipparcos-objects bright-star-catalogue-objects
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