The globular cluster Messier 22 lies in the constellation Sagittarius at a distance of about 9,785 light years and is one of the brightest and nearest of its kind. With a diameter of around 100 light years it contains more than several hundred thousand stars, crowded in its dense centre within a few hundredths of a light year of one another.
M22 is particularly striking because it is already visible to the naked eye and reveals a multitude of individual stars in larger telescopes — a fascinating sight that impressively shows the spherical structure and the enormous stellar density of this ancient galactic halo object.
| IMAGE DATA | |
|---|---|
| Object | Messier 22 |
| Distance | approx. 9785 light years |
| Date | 15.10.2025 |
| Exposure | RGB each 20x 120sec., - Total 2h |
| Mount | Skywatcher EQ6-R Pro |
| Telescope | Askar 120APO with 0.8x Reducer |
| Camera | ZWO ASI 2600mm with ZWO RGB Filter |
| Guiding | Zwo Asi OAG with ZWO Asi 290mm Mini & Asiair |
| Software | AsiAir, Astropixel Processor, Pixinsight, Photoshop CC, NoiseXterminator, Star X Terminator, BlurXterminator, Nik Collection 7 |