PK136+04.1 and PK136+05.1 are a pair of faint planetary nebulae located near the border between the constellations of Cassiopeia and Camelopardalis.

Planetary nebula PK136+04.1 lies approximately 6,300 light-years from Earth.  This planetary nebula displays the classic bubble shape that many planetary nebula have along with faint green and blue emission lines.

PK136+05.1 lies somewhat closer to Earth at ~4,000 light-years away. It's irregular shape and bow shock feature may be due to the nebula moving with speed through the surrounding gas and dust, compressing the nebula in the direction of motion while dissipating the nebula on the trailing side. (Similar to what is seen with the Shrimp and Medusa nebulas)

*My first light image with the Astro-Physics Quad Compressor focal reducer/flattener for my TEC140.