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NGC 5709 = NGC 5703. See NGC 5699.
Synonyms: H III-128
Recorded in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He wrote it "Two. 3' distant, on the same parallel; ... the preceding [NGC 5709] is eF, vS, verified with 240 power." The other object is NGC 5706.
Dreyer notes "they are identical with Stephans nebulae NGC 5706 and 5709."
The RNGC (Sulentic and Tifft 1973) notes that this is a 14.5 mag galaxy. Their coded description reads S,EL,BM,DIF,WKSSTDSK.
The Messier objects
The Bennett objects
The Caldwell list
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