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Kronberger 61

Technical card

Resolution: 1967x1152

Frames:
Astrodon Blue: 10x300" bin 1x1
Astrodon Green: 10x300" bin 1x1
Astrodon Lum: 19x600" bin 1x1
Astrodon OIII 3 nm: 34x1800" bin 2x2
Astrodon Red: 10x300" bin 1x1

Integration: 22.7 hours

Astrometry.net job: 3039046

RA center: 290.423 degrees

DEC center: 38.308 degrees

Pixel scale: 0.533 arcsec/pixel

Orientation: 180.661 degrees

Field radius: 0.169 degrees

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

Data source: Own remote observatory

Remote source: e-EyE Extremadura

Description

Kronberger 6`1 (Kn 61). also known as the Soccer Ball nebula, is a recently-discovered planetary nebula in the constellation of Cygnus. It was discovered in January 2011 by Mattias Kronberger, who is a member of the amateur group Deep Sky Hunters. It is very small (diameter of 104 arcsecs).
It is barely visible on the second Palomar Optical Sky Survey (POSS-II) blue plate scan, suggesting a surface brightness well below magnitude 25 per square arcsecond - and at an estimated distance of 13,000 light years (1).
It is a highly filamentary bubble with a high expansion velocity of 67.6 km/second. A crude kinematic age for the bubble yields 16,000 years (2).

(1) http://www.gemini.edu/node/11656
(2) https://arxiv.org/abs/1406.4408

Comments

Author

PeterGoodhew
Peter Goodhew
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increased saturation

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Kronberger 61, 





    
        

            Peter Goodhew