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A Kulcslyuk-köd az Éta Carinae-köd belsejében a Hubble űrtávcső WFPC2 kamerájának 1999 áprilisi mozaikfelvételén.
Der Schlüsselloch-Nebel in der Nähe von η-Carinae, innerhalb des Carina Nebels, ein Mosaik aus vier im April 1999 gemachten Aufnahmen von Hubble's Wide Field Planetary Camera 2.
{{Information |Description=The Keyhole Nebula, within NGC 3372. A mosaic of four April 1999 images by Hubble's Wide Field Planetary Camera 2. |Source=Space Telescope Science Institute - http://hubblesite.org/newscenter/newsdesk/a