Object: Planetary nebula JnEr 1 (PK164+31.1) Constell: LYN RA: 07h 57.9m Decl: +53° 25' Epoch: 2000 Mag: 12.1m (v) Size: 380'' Type: 4 Observer: Jere Kahanpää Obs. place: Hartola, Finland Date/Time: 5./6.1.1997, 23.55 Telescope: N 205/1000 Magn: 80x Filter: O-III Field: 37' NE Lim.mag: 6.2m Background sky: 2-3 Seeing: 2 Weather: -20 °C, no Moon. Brightness: 5 Alt: 75° Description: A very faint glow but well defined with an O-III filter (invisible without it). Exact position in the field unsure as most stars are not visible with the filter and the neby is visible less than 50% of the time. Requires good adaption. Round. The ring structure is quite easy with two brightenings SW and NW. The ring cannot be traced around the rim: S and N edges are fainter and more diffuse.