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Getting plate-solving status, please wait...

Technical card

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 job: 3039046

RA center: 19h 21' 41"

DEC center: +38° 18' 29"

Pixel scale: 0.533 arcsec/pixel

Orientation: 179.362 degrees

Field radius: 0.169 degrees

Resolution: 1967x1152

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

Data source: Own remote observatory

Remote source: e-EyE Extremadura


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).




Peter Goodhew



Description: increased saturation

Sky plot

Sky plot


Kronberger 61, 


            Peter Goodhew