Sh2-174 is a very faint but very large planetary nebula.
Located in the constellation of Cepheus and very close to the polar star.
It was discovered in the 1960s, and cataloged as a planetary nebula in the 1990s.
In the image we can see the Hydrogen zone and the other Oxygen zone very close together, but both take different directions.
Distance from Earth about 1000 light years and one of the closest planetary nebulae to Earth, with a magnitude of 14.75. ADAM BLOCK.