From Wikipediia.
The Homunculus Nebula is a bipolar emission and reflection nebula surrounding the massive star system Eta Carinae, about 7,500 light-years (2,300 parsecs) from Earth.
The nebula is embedded within the much larger Carina Nebula, a large star-forming H II region. From the Latin homunculus meaning Little Man, the nebula consists of gas which was ejected from Eta Carinae during the Great Eruption, which occurred ~7,500 years before it was observed on Earth, from 1838 to 1845.
It also contains dust which absorbs much of the light from the extremely luminous central stellar system and re-radiates it as infra-red (IR). It is the brightest object in the sky at mid-IR wavelengths.
Image Details:
Taken with a Tak Mewlon 210 F11.5 with Tak x.16 Extender and the (uncooled) Player One Saturn SQR Mono camera. After watching the relevant Adam Block tutorials for PixInsight, I was able to process 345 x 1 sec frames and arrive at the results below.
Hubble Overlay:
The colour overlay is a Hubble Telescope image reduced in size to fit my tiny offering.
PixInsight Image Solver:
The Image Solve Script in PixInsight provided the following data:
Resolution - 0.219 arcsec/px
Focal distance - 3544.26 mm
Pixel size - 3.76 um
I have also attached a 60x30 sec crop from the centre of the frame.
Cheers
Dennis