![](https://www.xiulong.it/tianwensheying/wp-content/uploads/2023/09/NGC6871-WO51_ASI1600mm-SH_OiiiHb_180sec-20C-PP-noisext-1024x774.jpg)
Third panel belonging to mosaic project focused about Cygnus core.
Subframes in narrowband recorded between 05/03/2023 and 08/07/2023, 180sec at -20 Celsius by ASI1600mm Pro at gain 173 on William Optics Redcat 51.
![](https://www.xiulong.it/tianwensheying/wp-content/uploads/2023/09/NGC6871-WO51_ASI1600mm-HaOiiiHb_180sec-20C-PP-noisext-1024x774.jpg)
SHO palette
![](https://www.xiulong.it/tianwensheying/wp-content/uploads/2023/09/NGC6871-WO51_ASI1600mm-HaOiiiHb_180sec-20C-PP-noisext-1024x774.jpg)
Ha Oiii Hbeta palette