Frank Muller (September 10, 1862 – April 19, 1917) was an American astronomer.
[1][2] From 1885 he worked in the Leander McCormick Observatory as an assistant to Ormond Stone and Francis Preserved Leavenworth.
[2][3] He discovered ~100 astronomical objects, from NGC catalog and Index catalog, for example NGC 17 in 1886.
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