Celestial hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  PGC 2668170  ·  PGC 84884  ·  PK094+27.1
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Kohoutek 1-16, 



    
        

            Peter Goodhew
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Getting plate-solving status, please wait...
Kohoutek 1-16, 



    
        

            Peter Goodhew
Powered byPixInsight

Acquisition details

Frames:
Astrodon 5nm H-Alpha filter: 132×900(33h) bin 1×1
Astrodon Blue: 13×300(1h 5′) bin 1×1
Astrodon OIII 3 nm: 64×900(16h) bin 1×1
Astrodon Red: 10×300(50′) bin 1×1
Green: 12×300(1h) bin 1×1
Integration:
51h 55′

RA center: 18h21m51s.936

DEC center: +64°2153.26

Pixel scale: 0.266 arcsec/pixel

Orientation: -10.249 degrees

Field radius: 0.188 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 4250x2838

File size: 343.6 KB

Locations: e-Eye, Fregenal de la Sierra, Extramadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura

Description

Kohoutek 1-16 (K 1-16) is a planetary nebula in the constellation Draco. It has very low surface brightness, and is around 7,000 light year from Earth.
It's central progenitor star is a very hot (over 80,000 K) pulsating variable white dwarf called DS Dra. The dominant pulsating period is 28.3 minutes.
The nebula has a diameter of 1.6 arcmin.

Immediately below, and very slightly offset to the left of K1-16 is a bright (14th mag) blue star which is quasar KUV 18217+6419, one of the brightest objects of this type in the sky. It is around 3.4 billion light years away.

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Kohoutek 1-16, 



    
        

            Peter Goodhew