This is a detail view of the Homunculus Nebula surrounding the star η Carinae. The detail image is a cropped and drizzled image taken with 120 subframes of 5 seconds each through a Ha filter. It overlies an image of the Carina Nebula I took earlier this year. At 1270mm focal length there is only a hint of bi-lobed structure of the nebula that can be seen at longer focal lengths. Twice the focal length would have been much better! A bigger image is available on
Astrobin.
Kevin