This week, we’re seeing another jewel of the southern skies – the Carina Nebula (NGC 3372), also known as the Eta Carinae Nebula, and the Great Nebula in Carina.
The full nebula complex spans some 300 light years in width, and is actually four times as large, and even brighter than the Orion Nebula.
I’ve chosen to focus in on the Keyhole Nebula (centre left) and surrounding nebula structure, given the rather limited field of view at 1200mm focal length. This is definitely a target where I would love to be able to take a whole slew of deep-field images and stitch them together in a mosaic.
Unfortunately, this is exceedingly difficult for me, given that I have to take down and pack away my setup every night!
This image is composed of 3x 400s exposures in Ha, O-III and S-II narrowband, colourised using the ESO colour palette (R=Ha, G=O-III, B=S-II).