Albert's return

 作者:吉听     |      日期:2019-03-07 09:11:01
THE last “missing” asteroid thought to orbit the Solar System has finally been found. Discovered in 1911 by Austrian astronomer Johann Palisa, asteroid 719, nicknamed Albert, was named and numbered after its orbit was calculated from a month of observations. But its orbit was not known precisely enough to find it again. Other lost asteroids have since been rediscovered, the last in 1991. Earlier this month,