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Phi1 Cancri

Star in the constellation Cancer

Summary

Star in the constellation Cancer

| b-v = +1.40 | u-b = +1.68 | r-i = Phi1 Cancri is a solitary, orange-hued star in the constellation Cancer. Its name is a Bayer designation that is Latinized from φ1 Cancri, and abbreviated Phi1 Cnc or φ1 Cnc. This star is faintly visible to the naked eye with an apparent visual magnitude of +5.57. Based upon an annual parallax shift of , it is approximately 432 ly distant from the Sun. The star is drifting further away with a line of sight velocity of +25 km/s.

This is an evolved K-type giant star with a stellar classification of K5 III, having exhausted the hydrogen at its core then expanded off from the main sequence. The measured angular diameter of this star, after correction for limb darkening, is . At the estimated distance of Phi1 Cancri, this yields a physical size of about 27 times the radius of the Sun. It has 1.3 times the mass of the Sun and is radiating 195 times the Sun's luminosity from its photosphere at an effective temperature of .

References

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

| display-authors=1 | last1=Richichi | first1=A.

:\begin{align} 2\cdot R_* & = \frac{(132.3\cdot 1.87\cdot 10^{-3})\ \text{AU}}{0.0046491\ \text{AU}/R_{\bigodot}} \ & \approx 53.2\cdot R_{\bigodot} \end{align}

| access-date=2017-06-09 }}

| display-authors=1 | journal=Astronomy and Astrophysics

References

  1. {{Cite Gaia DR3. 707099123278431744
  2. {{Cite XHIP. 41377
Wikipedia Source

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.

k-type-giants cancer-(constellation) bayer-objects bright-star-catalogue-objects durchmusterung-objects flamsteed-objects henry-draper-catalogue-objects hipparcos-objects
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