SBIG ST-4000XCM16x15minDarks/Flats/Bias AppliedImager Temp -20C
Celestron 9.25 Reduced 0.63
30% CropLink to Larger JPEG
Coordinates: 07h 57m 30s; +53º 25 ’ 30’’Anacortes Telescope and Wild Bird Picture of the Day February 4, 2010Sky and Telescope Editor's Choice November 19, 2009
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.
This is 4 hours of data with my C9.25, and I believe this is at or near the limits of this setup's capability.
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. The numbers indicate the position of the object on the sky.
November 12, 2009