NGC 6822 Barnard's Galaxy
Image information:
| Date: | 07/08/2026 |
| Equipment: | Moravian C2-9000 camera with Moravian EFW-2XS-8 filter wheel using Astrodon E series Gen II LRGB filter set and Astrodon 5nm Ha filter through APM/LZOS 105/650 APO telescope on Pegasus Astro NYX-101 mount. The telescope was working at f6.2 with Astro-Tech 2" field flattener. |
| Image type: | LRGBHa |
| Exposure time: | 20X3min LRG&B, 20X6min Ha each binned 1X1 |
| Comment: | Any comment |
Object information:
|
Object designations: |
NGC 6822, Caldwell 57, Barnard's Galaxy |
|
Object type: |
barred irregular galaxy |
|
Object size: |
16' X 14' |
| Constellation: |
Sagittarius
|
|
Comment: |
Barnard's Galaxy (NGC 6822) is a small, irregular dwarf galaxy located 1.6 million light-years away in the constellation Sagittarius. Discovered by Edward Emerson Barnard in 1881, this close neighbor in our Local Group spans a diameter of just 7,000 light-years -roughly 7% the size of the Milky Way. It holds immense historical value; in 1925, Edwin Hubble used its stars to prove definitively that other galaxies exist outside our own. Today, due to its isolated nature and low metallicity (a lack of heavy elements), it closely mimics the environment of the early universe. This makes the tiny galaxy a perfect cosmic laboratory, allowing modern instruments to study the pristine conditions under which the universe's earliest stars were born. |
Related images:
|
List of related images: |
None |