In recent months, I’ve upgraded hardware and have concentrated more on learning PixInsight etc and not actually finishing images.
The M45 Pleiades, M8 Lagoon Nebula and NGC2024 Flame / Barnard 33 Horsehead Nebulas were images from last month’s observation night in Terrey Hills. It was my first night with a QHY600M-PH camera. It has a full-frame sensor with a similar pixel size to my ZWO ASI1600MM Pro which results in a larger field of view. This camera presents some extra challenges flattening the image from the SkyWatcher ED120 ESPRIT
My target for the night was the M8. I wanted to compare the image from the QHY600M and the ASI1600MM.
Around midnight, as M8 was getting a bit too low to continue imaging, I noticed Orion rising and in addition, someone pointed out that the Pleiades was also rising. I thought that I might as well try for it as my object was now too low in the sky and I had never imaged Pleiades.
Remembering the Pleiades was blue, I tried to collect some O3 images but with no luck seeing the nebula with that filter. So, running out of time to do any research, I took a chance on imaging using LRGB filters at 60s.
Later, listening to Fred Watson podcast, I learned there was an association between Pleiades and the Subaru car emblem.
Various unsubstantiated explanations exist around translations from Japanese but there seems no doubt about the association with the Subaru Logo and M45 Pleiades.
The Pleiades star cluster inspired the Subaru logo and alludes to the five companies that merged to create Fuji Heavy Industries in 1953 (now Subaru Corporation).
I captured my images after midnight at our October observation night in Terrey Hills
They consist of 20 x Blue, 10 x Green, 10 x Red and 10 x Lum all at 60 seconds each