Observation by Peter Goodhew FRAS: Kronberger 61

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Peter Goodhew FRAS

Observer

Peter Goodhew FRAS

Observed

2019 Nov 05 - 17:28

Uploaded

2019 Nov 07 - 17:30

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Constellation

Lyra

Field centre

RA: 19^h21^m
Dec: +38°18'
Position angle: +179°23'

Field size

0°17' × 0°10'

Equipment

APM TMB LZOS 152 Refractor
10Micron GM2000 mount
QSI6120wsg8 camera

Exposure

23 hours total exposure OIIILRGB

Location

Fregenal de la Sierra, Spain

Target name

Kronberger 61

Title

Kronberger 61

About this image

Kronberger 61 (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).

Astrodon Blue: 10x300"
Astrodon Green: 10x300"
Astrodon Lum: 19x600"
Astrodon Red: 10x300"
Astrodon OIII: 34x1800s bin 2x2
Total Integration: 23 hours

Captured on my dual rig in Spain.
Scopes: APM TMB LZOS 152 (6" aperture 1200mm focal length)
Cameras: QSI6120wsg8
Mount: 10Micron GM2000 HPS

(1) <a href="http://www.gemini.edu/node/11656" rel="noreferrer nofollow">www.gemini.edu/node/11656</a>
(2) <a href="https://arxiv.org/abs/1406.4408" rel="noreferrer nofollow">arxiv.org/abs/1406.4408</a>

Files associated with this observation

Kn61v2.jpg (592.2 kB)

Like this image

Graham Winstanley, Jeremy Shears, Dr Paul Leyland, David Swan, Callum Wingrove, Andy Wilson, Dean Ashton OBE, Geof Lewis, Andrew Dumbleton, Peter Carson

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