Eta Carina NGC3372 Members Astro-Images Come back regularly to view the very best astro-photography from members of Macarthur Astronomical Society. Please respect the copyright of the photographer. Keyhole NebulaKeyhole Nebula at the heart of the Great Eta Carina nebula. Eta Carina is the bright star next to it, surrounded by the Homunculus Nebula, formed in the 1800's when the star underwent mass ejection events. Image by Greg Bradford Keyhole Nebula Page 1 of 11
