The dwarf planet Eris is in a highly elliptical orbit, and is currently 96 AU from the Earth. This is 13.3 light-HOURS from Earth, so about 1/650th of a light year.
Neptune, by contrast, is 30.2 AU away (as of 12/1/09), so approximately 1/3 the distance to Eris.
This star is about 65 light years from Earth.
The celestial object located 40 light years from Earth is the star known as Proxima Centauri.
The star Nekkar, also known as Beta Boötis, is approximately 219 light-years away from Earth.
Gamma Cygni, also known as Sadr, is approximately 1,800 light-years away from Earth.
M 99, also known as Messier 99, is located approximately 50 million light years away from Earth. It is a spiral galaxy in the constellation Coma Berenices.
It seems that the closest known black hole is at a distance of about 3000 light-years.
Nebulae can vary in distance from Earth. Some are close, within a few hundred or thousand light-years, while others can be many thousands or even millions of light-years away. The closest known nebula to Earth is the Helix Nebula, which is about 700 light-years away.
Alrisha, in the constellation Pisces, is 139 light year from earth.
Enif, also known as Epsilon Pegasi, is approximately 690 light-years away from Earth. It is a supergiant star located in the constellation Pegasus.
The Peacock star, also known as HD 101065, is approximately 115 light years away from Earth.
There is nothing there. The nearest known star to sun (Proxima Centauri) is 4.2 light years far. But the diameter of Solar system is .05 light years long.
Barnard's Star is approximately 5.96 light-years away from Earth, making it the fourth-closest known individual star system to our solar system.