NGC 2174 - The Monkey Head Nebula

This is the same nebula as the other photo, but is has been taken through an Optolong L-eNhance Dual Narrowband Filter. In this image, the red/orange color is the light emitted by ionized hydrogen gas and is referred to as "hydrogen alpha" or Hα. The blue glow is from doubly ionized oxygen or OIII. This color palette is called the HOO palette and is similar to the SHO or Hubble Palette made famous by the Hubble Space Telescope.

Equipment:
OTA: SVBONY SV503 70ED Refractor f/6
Reducer: SVBONY SV193 0.8x reducer f/4.8
Filter: Optolong L-eNhance Dual Narrowband Filter
Camera: ZWO ASI183MC Pro Color Cooled Camera (20.1mp)
Mount: Explore Scientific EX02GT w/ PMC-8
554x30s subs (4 hours 37 minutes) stacked with SharpCap 4.1 with darks and flats
Processed with GraXpert, Siril, and Paint Shop Pro 6