A not very photographed area of the sky. This area is suprisingly large abd is rewarding when imaged. NGC 6820 is a small reflection nebula near the open cluster NGC 6823 in Vulpecula. The reflection nebula and cluster are embedded in a large faint emission nebula called Sh 2-86. The whole area of nebulosity is often referred to as NGC 6820.
M27, the Dumbbell Nebula, is found three degrees to the east, and α Vulpeculae three degrees to the west.
Open star cluster NGC 6823 is about 50 light-years across and lies about 6,000 light-years away. The center of the cluster formed about two million years ago and is dominated in brightness by a host of bright young blue stars. Outer parts of the cluster contain even younger stars. It forms the core of the Vulpecula OB1 stellar association.
From Wikipedia
| Telescope or Lense | William Optics Gran Turismo |
| Imaging Camera | ZWO ASI6200mm pro |
| Mount | Celestron Advanced VX |
| Filters | ZWO HA 7nm 2″, ZWO Oiii 7nm 2″, ZWO Sii 7nm 2″ |
| Accessories | William Optics Flat6aIII |
| Software | Adobe Photoshop,Peiades Astrophoto Pixinsight |
| Acquisition Dates | June 13, 2022 · June 14, 2022 · June 15, 2022 |
| Frames | ZWO H-alpha 7nm 2″: 69×300″ (5h 45′) (gain: 200.00) -15°C bin 1×1 ZWO O-III 7nm 2″: 50×300″ (4h 10′) (gain: 200.00) -15°C bin 1×1 ZWO S-II 7nm: 28×300″ (2h 20′) (gain: 200.00) -15°C bin 1×1 |
| Intergration Time | 12h 15′ |
| Darks | 20 |
| Lights | 20 |
| Bias | 50 |
| SKY position | RA center: 19h42m55s.47 DEC center: +23°32′39″.4 Pixel scale: 2.008 arcsec/pixel Orientation: -165.570 degrees Field radius: 2.329 degrees |
| Resolution of image | 7032*4490 |
| Location | Fareham, UK |
