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... М21 < М22 > М23 ...
Globular star cluster M22
Die offener Sternhaufen M22 or Sagittarius Globular star cluster is in the constellation Sagittarius (Sgr).
Equatorial coordinates (epoch J2000):
Visual magnitude: 6,5m
M22 in the middle latitudes is located quite low above the horizon, so observation is difficult due to atmospheric distortions.
The best month for observing M22 is July. At this time, the object is at midnight near its highest point in the sky, that is, it is less affected by light from the lanterns and atmospheric distortions.
For observers in the northern latitudes:The nights in July are still quite light, so it makes sense to try to observe M22 also in August.
Nikolay Kurdyapin, astro-map.com
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