NGC 6820
- Date: 13 – 19 August 2012
- Exposure: 20.8 hours Ha-RGB (825:140:140:140 min.)
- FWHM: 2.0 arcsec.
- Additional notes: Ha-Image
- Telescope: 18” f/4.5 Newtonian
- Mount: Heavy Forkmount
- Camera: ALccd9 + ALccd Filterwheel
- Filters: Baader HaLRGB
NGC 6820