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... М10 < М11 > М12 ...
Open star cluster M11
Open star cluster M11 or Wild Duck is in the constellation Scutum (Sct).
Equatorial coordinates (epoch J2000):
Visual magnitude: 7,0m
Optimum magnification for a telescope with observations of M11, depending on the aperture of the telescope (D), is about 0.4D-0.8D. Higher magnifications of course add details, but lead to a strong drop in the brightness of the image, making it difficult to observe.
The best month for observing M11 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 M11 also in August.
Nikolay Kurdyapin, astro-map.com
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