This is about 1 hour with each channel taken with the Sky 90 refractor and Astrodon narrowband filters with the Atik 490 CCD Camera.
The main open cluster in M8 is NGC 6530 with NGC 6533 and IC1271 in there as well. The entire region is labelled NGC 6523, RCW 146 & Gum 72. The globular cluster NGC 6544 sneaks in the bottom left.
This object is part of the Sharpless Catalogue of HII regions
This image was autoguided using my homemade off axis guider with Lodestar.
Exposure Details :
Astrodon 3nm Ha 5x600s on 90 @ F4 f.l. 409 with Atik 490 camera
Astrodon 3nm OIII 5x600s on 90 @ F4 f.l. 409 with Atik 490 camera
Astrodon 6nm SII 5x600s on 90 @ F4 f.l. 409 with Atik 490 camera
Curdridge Observatory, Southampton,UK