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Taken 4-Feb-24
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Dimensions5816 x 3642
Original file size2.56 MB
Image typeJPEG
Color spacesRGB
M42, The Great Orion Nebula

M42, The Great Orion Nebula

When I was a kid, I remember seeing something weird when looking at Orion with the unaided eye under very dark skies. When I looked at Orion's sword straight on, it looked like stars but when I looked around it, I noticed a fuzzy spot out of the corner of my eye but when I looked back to see what that was, it just looked like stars again. It was so puzzling to me at the time and I didn't find out until decades later that this is what I was seeing. I had to combine multiple exposures for this shot because the trapezium, the bright asterism at the core of the nebula, is so bright that long exposures can easily overexpose them and they look like a big blob. In this widefield shot, the trapezium is not apparent and you really have to zoom in to see it.


Astro-Tech AT72EDII
AT 0.8x reducer
ZWO ASI2600MC Pro
Orion Sirius EQ-G
ZWO ASIAIR Pro
100 x 5 second exposures for the core
134 x 60 second exposures
Processed in Pixinsight and blended in Photoshop