eso8611-en-au — Science Release
Long Lost Planet Found Again
4 December 1986: An unusual "astro-detective" investigation came to a successful conclusion today, when a long lost planet in the solar system was finally found again. This planet which carries the name "MALLY" and the number "1179" had been missing for 55 years, and was last seen in 1931. Its faint image was now identified on photographic plates obtained with the ESO Schmidt telescope during a dedicated search programme. The accurate orbit of MALLY in the solar system  has now been determined, ensuring that MALLY will never be lost again. This work was carried out by Drs. Lutz Schmadel of the Astronomisches Rechen-Institut in Heidelberg, FRG, and Richard M. West of the European Southern Observatory.