NGC/IC Project Restoration Effort

===== NGC 1757 is nonexistent. JH claims to have seen it once on 20 Feb 1830, saying of it, "A very large space affected with nebulous streams in zigzags up and down. (N.B. Such observations require several verifications. The opportunity has not occured in this case.)." He never got back to this and it has never been seen since. Lord Rosse and his observers tried six to eight times. The actual number is uncertain. In the 1861 monograph, LdR says "Looked for seven times. Not found," while the 1880 monograph says "Looked for 6 times in the years 1848-58, not found", and adds another attempt on 30 December 1867: "Night bad; suspected slightly luminous appearance in spots, but not very decided." (Dreyer in the NGC note says six times). Neither Tempel nor Spitaler could find it, and Reinmuth did not locate it on the Heidelberg plates. I searched for this on the sky survey prints and later on the DSS, as well as in the IRAS infrared images. The closest nebulosity is over 20 arcmin from JH's position and does not agree at all with his description. In any case, the whispy stuff is far too faint to be seen visually. Even JH came to doubt his observation. His GC note reads, "A very large diffused nebulosity, distributed in zigzags. This has been looked for seven times by Lord Rosse and not found. Its existence is therefore very doubtful."