Johann Abraham Ihle

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Johann Abraham Ihle (June 14, 1627 – c.1699) was a German amateur astronomer who discovered the first known globular cluster, M22,[1] on August 26, 1665 while observing Saturn in Sagittarius.


  1. ^ Sharp, N. A., M22, NGC6656, REU program/NOAO/AURA/NSF, retrieved 2006-08-16.
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