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Jones-Emberson,-1, The Headphone Nebula, PK 164+31.1, PN G164.8 +31.1s, 





    
        

            Steven Bellavia
Jones-Emberson,-1, The Headphone Nebula, PK 164+31.1, PN G164.8 +31.1s

Jones-Emberson,-1, The Headphone Nebula, PK 164+31.1, PN G164.8 +31.1s

Technical card

Resolution: 1800x1200

Dates:Feb. 8, 2019Feb. 9, 2019Feb. 16, 2019

Frames:
Astronomik 6nm OIII: 36x300" (gain: 140.00) -15C bin 1x1
Optolong 7nm Ha 2": 35x300" (gain: 140.00) -15C bin 1x1

Integration: 5.9 hours

Darks: ~25

Avg. Moon age: 6.17 days

Avg. Moon phase: 38.45%

Bortle Dark-Sky Scale: 4.00

Temperature: -8.50

Astrometry.net job: 2530705

RA center: 7h 57' 52"

DEC center: +53° 25' 26"

Pixel scale: 1.206 arcsec/pixel

Orientation: 92.717 degrees

Field radius: 0.362

Data source: Backyard

Description

The Headphone Nebula, Jones-Emberson 1 (PK 164+31.1, PN G164.8 +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 a very blue white dwarf.

Discovered in 1939 by R. Jones and R. Emberson, its "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).

Comments

Author

bellavia
Steven Bellavia
License: None (All rights reserved)
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Revisions

  • Jones-Emberson,-1, The Headphone Nebula, PK 164+31.1, PN G164.8 +31.1s, 





    
        

            Steven Bellavia
    Original
  • Final
    Jones-Emberson,-1, The Headphone Nebula, PK 164+31.1, PN G164.8 +31.1s, 





    
        

            Steven Bellavia
    D

Sky plot

Sky plot

Histogram

Jones-Emberson,-1, The Headphone Nebula, PK 164+31.1, PN G164.8 +31.1s, 





    
        

            Steven Bellavia