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STAR POLLUXCASTOR INFO



Polluxcastor, also known as the Alpha Geminorum, is a star system located in the
constellation of Gemini. It is the brightest star in the constellation and one
of the most recognizable stars in the night sky. The star system consists of two
stars, Pollux and Castor, and is easily visible to the naked eye. Pollux is an
orange-hued giant star, and Castor is a white main-sequence star accompanied by
two fainter companion stars.

Polluxcastor was first documented by the 2nd century Greek astronomer Ptolemy,
who included it in his list of stars in his Almagest. The star system was also
mentioned by other astronomers such as Johannes Kepler and Galileo Galilei.
However, it wasn’t until 1844 when Friedrich Bessel accurately measured the
distance to the star system from Earth using parallax.

Pollux is the brighter of the two stars, and is classified as a K0 III orange
giant. This means that it is in the process of transitioning from the main
sequence to the giant branch of the stellar evolutionary track. It is estimated
to be about 34 times brighter than the Sun, and is about 34 light-years away
from Earth.

Castor is the second star in the system, and is a white main sequence star. It
is a spectroscopic binary, meaning that it has two companion stars in close
orbit around it. The primary star is estimated to be about 5.9 times as massive
as the Sun, and is located about 52 light-years away from Earth.

Polluxcastor is an interesting star system that has been studied extensively
over the centuries. It is easily visible to the naked eye, and is a great object
for amateur astronomers to observe.



Read More About Stars
  Story by Klay Wint