The nebula consists of a cloud of interstellar gas—principally hydrogen—lit from within by young,
hot stars that ionize the gas around them.
As the atoms in the gas recombine, they emit visible light.
The total mass of the nebula is about 1,000,000 solar masses, and its diameter is 170 parsecs (550 light-years),
making it the largest region of ionized gas in the entire Local Group of galaxies.
Tech info:
Giruá, RS, Brazil.
Bortle 4 zone.
Imaged between September 17 to 18th, 2022.
81 x 300s frames (6h45′ total integration)
askar fma230 refractor
asi2600mc camera
Skywatcher AzGti mount – eq mode.
Antlia Duo-Narrowband 5nm ALP-T filter
Processing: Pixinsight, Photoshop.