is that black hole close enough to suck are solar system in ?
Yes and no.
Yes in that everything in the universe sucks everything else in. (Gravity)
No in that the gravity of a black hole isn't any greater than any other object of the same mass. The difference is that black holes fit alot of mass into a relatively small space, so they are much better at demonstrating that gravity gets stronger the closer you get to an object. (That's a bit of a simplification, but I think it should give you the general idea).
The zone of no escape for a black hole with the mass of the sun would start at about 3 km from the black hole. The innermost stable orbit would be around 6km, and the innermost unstable orbit would be around 4.5km.
For comparison, the radius of the sun is about 700,000 km. If you were 700,000 km from a 1 solar mass black hole, you wouldn't feel the gravity to be any different than if you were skimming just above the surface of the Sun. If you were 7,000 km from a 1 solar mass black hole, you wouldn't feel the gravity to be any different from skimming the surface of a 1 solar mass white dwarf.
A black hole with the mass of the Earth would have a zone of no escape about two thirds of an inch (1.7 cm) across (a third of an inch in radius). A cherry would probably be a fairly good approximation, though it might be a bit large.
In other words, you need to get very, *very* close to a black hole before you would get "sucked in." (Typical stellar black holes would be a bit heavier than the sun, say 3 to 10 times the mass, so a zone of no escape starting between 10 and 30 km away, which is still downright tiny in astronomical terms.)
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If it is a unknown stellar black hole, it is far away. The gravity well of such a black hole would be only 3 - 10 times larger as the gravity well of the sun - and the gravity well of the sun has 1 light year radius.
It can not capture anything outside it's gravity well, but it can influence objects.
I think you mean Hill Sphere, not gravity well.