Tell me the importance of POLE STAR and SIRIUS in 3-4 lines - Science - Stars and the Solar System

Question

Tell me the importance of POLE STAR and SIRIUS in 3-4 lines

Arpita Sukhwani · Accepted Answer

The Pole Star, or Polaris, is directly above
Earth's North Pole From our perspective on Earth, every star in the
sky pivots around the Pole Star, causing them to rise and set
Because of it's position over the North Pole, it's the only star
that doesn't appear to move It also is used to assist humans in
finding north - since it's stays in the same place all through the
night and year
The heliacal rising of Sirius marked the flooding of
the Nile in Ancient Egypt and the "dog days" of summer for the
ancient Greeks, while to the Polynesians it marked winter Thus it
is a important star

Tell me the importance of POLE STAR and SIRIUS in 3-4 lines.