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NGC 5570 is probably WH's first observation of NGC 5519. His description reads, "vF, forming an arch with 3 sts." NGC 5519 indeed forms an arch with two stars west and southwest, and a third is superposed on the galaxy. WH's observation puts N5570 21m 15s p, 0d 34' s of 31 Bootis. This is 6 minutes of time off the position of N5519. I think that the "21m" is a transcription error and should read "27m." In that case, the RA as well as the Dec and the description would match N5519.
Synonyms: H III-012
Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "vF. Forming an arch with three stars."
The RNGC (Sulentic and Tifft 1973) notes that this is a galaxy. Their coded description reads R,BM,ALMSTELLAR.
The Messier objects
The Bennett objects
The Caldwell list
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