Pointer stars are stars which are used to find an area of the sky. For example, you might be looking for a dim galaxy or small star. You can use two bright stars on a map, find those in the sky, and then find the approximate position of what you are trying to look at by using the location and spacing of the more obvious pointer stars.
The North Star Tail stars
It is to show you that the pointer is on the zero mark.
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Move the mouse pointer to rest on the item of choice
The pointer that does not move except by a knob, usually on the front, is just for comparing the movement of the pointer which reads barometric pressure. By lining them up, you are able to detect slight movements easier. I think that's the only reason for that other pointer. Hope this helps.
Pointer Stars are stars that are used to pinpoint other areas in the sky, such as constellations.
Merak and Dubhe, often referred to as the pointer stars, point to Polaris, which many people know as the North Star.
Merak and Dubhe
The North Star Tail stars
The Big Dipper is one of the most recognizable groups of stars in the sky. The pointer stars in the bowl of the dipper point toward the North Star.
Its basically the stars that are at one of the earths axes or stars that point to the main stars at the 2 axes.
The two pointer stars point to Polaris, the north star
YES. Ursa Major also contains the big dipper (which is not a constellation, it is an asterism) and the pointer stars are located in the handle of the big dipper.
polaris
Merak and Dubhe.
The question is vague. There are many stars called "pointer" stars. For example, two of the stars in Ursa Major lie along a line that passes very near Polaris. A completely different set of stars in Ursa Major form an arc that passes near Regulus. There are plenty of other such astronomical coincidences.
Cassiopeia