Messier Object 13
M13 is a globular cluster in the Hercules constellation discovered by Edmond Halley in 1714, and catalogued by Charles Messier on June 1, 1764. The Arecibo message of 1974 was transmitted toward this globular cluster.
A gem is not polished without rubbing, nor a man perfected without trials.
M13 is a globular cluster in the Hercules constellation discovered by Edmond Halley in 1714, and catalogued by Charles Messier on June 1, 1764. The Arecibo message of 1974 was transmitted toward this globular cluster.