astrophotography astro photo image Ring Nebula (Planetary Nebula) ( M57 NGC6720 ) - Canon EOS 300D (digital rebel) / Minolta SRT 101 - 20 inch Cassegrain on ADd-7 mount with fs/2

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Ring Nebula (Planetary Nebula) ( M57 NGC6720 )

Size: 1' 16" x 1' 16" Magnitude: 9.70 RA: 18:53:36 DEC: 00:02:00 Best obeserved in June at midnight
Scope:	20 inch Cassegrain on ADd-7 mount with fs/2
Imaging Method:	prime focus
Camera/CCD:	Canon EOS 300D (digital rebel) / Minolta SRT 101
Location:	Bad Mergentheim, Germany
Condition:	Seeing: fair - Transparency: fair
Exposure:	mean of 9 frames; 3x60sec, 6x30sec
Description:	no filter
Photographer:	Jens Hackmann, 24.06.2004 photo ranked: 4.66 with 29 votes (not realtime, last updated: 13.11.2009 12:50)
References to more Photos:	High Resolution Version of this Photo (will open new window) More of Ring Nebula (Planetary Nebula) ( M57 NGC6720 ) More of Canon EOS 300D (digital rebel) / Minolta SRT 101 More of 20 inch Cassegrain on ADd-7 mount with fs/2 More of Jens Hackmann More of prime focus

If you want to judge the quality of that photo, please... (Be fair and take into account that faint and small objects are more difficult than bright and big ones!)
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