This field is the LDN 204 region with several other Lynds Dark Nebula like LDN 191 and LDN 234. All of them are located in the constellation of Ophiuchus.
The background has been enhanced by 13.75 hours of Ha data.
Thanks Christophe for sharing the raw data.
OPTICS ASKAR FRA400 @ F/5.6
CAMERA ZWO ASI2600MM Pro
MOUNT Sky-Watcher HEQ5 PRO
FILTERS Ha, L, R, G, B
LOCATION Saintes, Nouvelle-Aquitaine, France
DATE May 2023
EXPOSURES 32,2 hours (Ha 165 x 300 sec, L 183 x 180 sec, R 67 x 180 sec, G 56 x 180 sec, B 63 x 180 sec)
PROCESSING SOFTWARE Pixinsight, Photoshop
COPYRIGHTS Christophe Marsaud, Nicolas Rolland
RA 16h 48m 26.6s
DEC -11° 53' 56.9"
SIZE 3.11 x 2.15deg
ORIENTATION Up is 74.7 degrees E of N
CONSTELLATION Ophiuchus