... Earths North Magnetic Pole . ... A magnetic compass does not point toward the true North Pole of the Earth. Rather, it more closely points toward the North Magnetic Pole of the Earth. ... M55: Globular Star Cluster . ... Only 20,000 light-years away in the constellation Sagittarius, M55 appears to earth-bound observers to be nearly 2/3 the size of the full moon. ... Not APOD editors. ... Staring across interstellar space, the alluring Cat's Eye nebula lies three thousand light-years from Earth. ...