Sh 2-1, is the combination of a diffuse HII emission nebula and reflection nebula in the constellation of Scorpius.
The star Pi Scorpii at its center (the bright star on Left)
It is estimated at a distance of approximately 650ly away.(WIKI)

This is a small part of this HUGE nebula - it is a 4 panel mosaic.
Each frame - LRGB with 60 min of Luminance and 20 min per RGB channel.

ASA 12" astrograph f3.6
ASI ZWO 6200 MM Pro camera
ASA DDM85 mount
Imaged from Tivoli farm Namibia

In addition - the Red Hydrogen Alpha data was obtained with a wide Tak FSQ 106 telescope.

Tak 106 data:
Reduced to F3.6
Moravian G3-16200 camera
ASA DDM 60 mount
Ha for 10 Hrs imaged from my home observatory.

A grand total of 18 hrs for the entire image
It took 3 years in making oner 2 continents...:)