On October 16, 1982, astronomers at Palomar Observatory, using an electronic camera attached to the 200-inch telescope, detected a dim 24th magnitude speck. Seventy-one years after it was last seen, Halley's comet had been recovered.
Iowa Science Teachers Journal
© Copyright 1985 by the Iowa Academy of Science
Kelsey, Lawrence A.
"Halley's Comet Returns,"
Iowa Science Teachers Journal: Vol. 22
, Article 4.
Available at: https://scholarworks.uni.edu/istj/vol22/iss1/4