The two pointer stars point to Polaris, the north star
Merak and Dubhe, often referred to as the pointer stars, point to Polaris, which many people know as the North Star.
Pointer Stars are stars that are used to pinpoint other areas in the sky, such as constellations.
It is Polaris.
The double star (**) notation is not specific to initializing a variable in a class. It is simply a double indirect reference to an object.float myFloat; // an objectfloat *myFloatPtr; // a pointer to an objectfloat **myFloatPtrPtr; // a pointer to a pointer to an objectmyFloat = 123.456; // initialize an objectmyFloatPtr = &myFloat; // initialize a pointer to an objectmyFloatPtrPtr = myFloatPtr; // initialize a pointer to a pointer to an objectmyFloat; // refer to an object*myFloatPtr; // refer to an object through a pointer**myFloatPtrPtr; // refer to an object through a pointer to a pointer*myFloatPtrPtr; // refer to the value of the pointer to the objectDouble pointer notation is used where the caller intends that one of its own pointers need to be modified by a function call, so the address of the pointer, instead of the address of the object, is passed to the function.An example might be the use of a linked list. The caller maintains a pointer to the first node. The caller invokes functions to search, add, and remove. If those operations involve adding or deleting the first node, then the caller's pointer has to change, not the .next pointer in any of the nodes, and you need the address of the pointer to do that.
I do not know which star is the one you refer to as "Pointer Star" but Arcturus has a declination (angle above the celestial equator) of +19° 10′ 56″. If yout "Pointer Star is "Polaris" then the angular distance between these stars is (90° - 19° 10′ 56″) or 70° 49' 04"
The North Star Tail stars
In the bible the star was first seen by the three wisemen.
The first home run in MLB All Star game history was hit by Babe Ruth of the Yankees off of Bill Hallahan of the Cardinals in the third inning of the first All Star game played in 1933.
German Wirehaired Pointer
The two "pointer" stars at the lip edge of the Big Dipper are Merak and Dubhe. Follow the line between them and extend it about 7 times their separation; the only even vaguely bright star there is Polaris.