Layer of dust surrounding the Proxima Century

Proxima Centauri

Question: Which star is closest to the sun?
(a) Cyrus
(b) Proxima Century
(c) Bernard
(d) Wolff 359 (CN leonis)
Answer: (b)
Related Facts:

  • In November 2017, scientists detected a layer of dust surrounding the Proxima Century.
  • This conclusion indicated the fact that the Proxima Century hosts the planetary system.
  • The new assessment of the Chilean-based observatory has revealed that the light coming from the cold dust in the area is one to four times the distance from the Proxima Century as far as the distance from Earth to the Sun.
  • Proxima Century is the closest star to the sun.
  • It is located approximately four light years away from us.
  • ‘Proxima B’ revolves around it.

Reference:
http://www.almaobservatory.org/en/press-release/alma-discovers-cold-dust-around-nearest-star/
https://www.eso.org/public/news/eso1735/
https://imagine.gsfc.nasa.gov/features/cosmic/nearest_star_info.html
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5495281/