The question makes no sense.....
the constellation 'Ursa major' is used to identify the pole star
There is no known constellation named "Chimera" in astronomy. The term "chimera" is often used to describe a mythical creature that lacks a specific representation in the sky as a recognized constellation.
It can be used to locate other stars
Orion is a constellation, so constellation would be a common noun that could be used.
Any of them, actually.
The constellation of Pegasus is in the northern sky and the Arawak and Warrau people used the stars to represent a grill on stilts. The square of the constellation was also used to locate navigational stars.
They are called "asterisms". Sometimes the word "constellation" is also used, though a constellation is not, strictly speaking, the pattern of stars; rather, it is defined by coordinate limits.
The absolute magnitude
The nickname of Puppis constellation is "The Poop Deck". It represents the stern of the mythical ship Argo Navis and is one of the three constellations that used to form the larger Argo Navis constellation.
Epsilon is a letter in the Greek alphabet and is used to designate stars within a specific constellation. The term "Epsilon" followed by the name of a constellation indicates the fifth-brightest star in that constellation.
Une constellation
The Big Dipper is an asterism, not a constellation. An asterism is a recognizable group of stars within a larger constellation. The Big Dipper is part of the Ursa Major constellation and is commonly used for navigation due to its distinctive shape.