Daily Archives: March 26, 2015

Jones-Emberson 1 (PK 164+31.1)


Jones-Emberson 1 (PK 164+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 Luboš Perek and Luboš Kohoutek, who in 1967 created an extensive catalog of all of the planetary nebulae known in the Milky Way as of 1964. The numbers indicate the position of the object on the sky. (“PK 164+31.1” basically represents the planetary nebula that when using the galactic coordinate system has a galactic longitude of 164 degrees, a galactic latitude of +31 degrees, and is the first such object in the Perek-Kohoutek catalog to occupy that particular one square degree area of sky).

Imaging telescopes or lenses: Orion Optics UK Newton 200mm f/4.5
Imaging cameras: QHYCCD QHY22
Mounts: Losmandy G11
Focal reducers: TeleVue Universal Paracorr
Software: DeepSkyStacker,  Nebulosity
Filters: Baader Planetarium RGB 2″,  Baader Planetarium Baader L 2″,  Baader Planetarium H-Alpha Filter
Resolution: 2687×2082
Dates: March 11, 2015
Frames: 20×1200″
Integration: 6.7 hours
Avg. Moon age: 19.51 days
Avg. Moon phase: 76.63%
RA center: 119.416 degrees
DEC center: 53.418 degrees
Orientation: -175.541 degrees
Field radius: 0.441 degrees
Locations: Observatoire personnel, Fourmies, None

Author: Niamor

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