Helix nebula NGC7293

Telescope :  8″ Celestron edgehd 

Mount : IOPTRON IEQ45 PRO

Imaging camera : MORAVIAN G2 8300 MONO

Filters :  Baader HA+OIII+SII

 2020/9/15

Exposure time : 20  hours

Software :  EKOS/KSTARS , PIXINSIGHT