This article is about objects of the Taurus constellation.
M45, or Pleiades or Seven sisters stars, is an open star cluster. The stars are very young, so they have a great life upon them.
We can see 6-7 stars with the naked eye, and even 9-11 if your eyes are pretty good. In reality, they are hundreds of stars.
Amateurs can confuse it with the small bear, but the small bear is bigger and is close to the Big Dipper.
Hyades is the closest star cluster. It makes a part of the structure of the constellation, which is special.
Like Pleiades, it can be observed, but in the inner of the constellation, just very close to Aldebaran.