Which of the following is NOT a characteristic of the Pleiades cluster?

The Pleiades cluster, also known as the Seven Sisters, is famously known for its bright stars and is located in the constellation Taurus. One of the defining features of this cluster is that it contains a few hundred stars, although not all are visible to the naked eye. Typically, six of its stars are easily visible from Earth without any optical aid, making it quite prominent in the night sky. The cluster itself is an open star cluster that presents a beautiful array of stars, which is why it's commonly noted in astronomy.

On the other hand, stating that the Pleiades is the brightest star in the night sky is inaccurate. The brightest star in the night sky is actually Sirius, which is not part of the Pleiades cluster. This distinction is essential for understanding the characteristics of both the Pleiades and other celestial objects.