Sh2-129 Flying Bat and Squid Nebula
The Sh2-129 Fying Bat Nebula is a faint region of Ha gas. It's located 2300 light-years from Earth and spans an area of about 80 light-years. The very faint teal-colored "Squid" in the middle is OU4, discovered by Astro-imager Nicolas Outters in 2011. OU4 was originally thought to be a planetary nebula that resulted from an exploding star, but is now believed to be an outflow from the bright central stars of Sh2-129. To achieve a good image of the Squid really requires a 3nm Oiii filter, instaed of the 7nm that I have, and at least 10 hours of data. North is at the bottom.

Scope/Mount: StellarVue SV70T Refractor with SFFR-70APO Focal-reducer/Field-flattener, Celestron CI-700 Mount
Camera: ZWO ASI1600MMC monochrome with ZWO LRGB filters
Guiding: QHY5L-IIM through Orion Thin OAG, PHD guiding software
Exposure: Ha:(12) 300 secs @ gain=300, Oiii: (18) 300 secs @ gain = 300, RGB: each channel (10) 120 sec @ gain=200
Software: Nebulosity, Pixinsight
Comment: 08-12-2023, Tierra del Sol, CA, some dew, palette = HOO plus RGB for stars.