It was first discovered by Harold J. Reitsema , William B. Hubbard , Larry A. Lebofsky and David J. Tholen , based on fortuitous ground-based stellar occultation observations on May 24 , 1981 , given the temporary designation S/1981 N 1 and announced on May 29 , 1981 .
It was first found by Harold J. Reitsema , William B. Hubbard , Larry A. Lebofsky and David J. Tholen based on ground-based stellar occultation observations on May 24 , 1981 , and given the designation S/1981 N 1 and said on 29 May 1981 .