PK 164 + 31.1, Also known as Jones-Emberson 1, is a large, dim planetary nebula located in the constellation of Lynx. It lies approximately 1600 light years from Earth and is 5 light years in diameter. Its central star is a 16.8 magnitude white dwarf, that is visible in this image. It was discovered in 1939 by Rebecca Jones and Richard Emberson. The PK designation is its name in the Perek-Kohoutek catalog of Planetary Nebulae.
This image, acquired on April 4, 2013, is a 1 hour integration of 3 minute exposures through the Celestron C-11 at f/2, using the HyperStar III imaging system and the Starlight ExprsCas SXVR-H694C color CCD camera,
operating at -10 degrees below ambient temperature and binned 1 X 1. Guided, captured and combined using Maxim DL5 Pro. Post processed using PhotoShop CS2, Gradient XTerminator, StarShrink, Carboni's Astro Tools and NoiseWare.