Object name: SH2
Designation(s): SH2, 156, IC1470,
Sh2-156 is also IC 1470. Galaxy Map is normally a good source for info on these but it seems confused. It gives a distance of precisely 4891 parsecs (15,300 light years) then says it is estimated to be 3500 to 4000 parsecs away (11,400 to 13000 light years). Then goes on to say it is part of the star cluster NGC 7510. Huh? The cluster is about 8 tenths of a degree northeast of the nebula and about 10,000 light years distant. Parts of Sharpless 2-157 (8000 lightyears) do extend into the field with NGC 7510 but certainly, Sh2-156 does not.
Related Designation(s):2MASX J04403475+5027419, 2MASX J23050983+6014560, 6C B043646.6+502153, 7C 0436+5022, 87GB 043647.6+502152, 87GB 230304.2+595825, 87GB[BWE91] 0436+5021, 87GB[BWE91] 2303+5958, IC 1470, NGC 1624, NVSS J044036+502744, NVSS J230510+601438, SHARPLESS 212, TXS 2303+599, [GMT2008] IR 23030, [KC97] G110.1+00.0, [KC97] G155.4+02.6, [WB92] 0436+5021, [WB92] 2303+5958, [ZHB90] G110.109+00.047,