Location of photoLexington, Ohio
Date/Time of photoNovember 12, 2009
EquipmentCelestron 9.25 reduced 0.63, SBIG ST-4000XCM, Astro-Physics Mach1GTO
DescriptionJones-Emberson 1 (PK164+31.1) in Lynx, 16x10min, Imager Temp -20C, 50% Crop. Coordinates: 07h 57m 30s; +53º 25 ’ 30’’. Jones-Emberson 1 (PK164+31.1) is a 14th magnitude planetary nebula in the constellation Lynx at a distance of 1600 light years. It is a larger planetary with low surface brightness. The 16.8-magnitude central star is very blue white dwarf. Discovered in 1939 by R. Jones and R. Emberson, it's "PK" designation comes from the names of
Czechoslovakian astronomers Perek and Kohoutek, who in 1967 created an extensive catalog of all of the planetary nebulas known in the Milky Way as of 1964.