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... М25 < М26 > М27 ...

Open star cluster M26

Die offener Sternhaufen M26 is in the constellation Scutum (Sct).

M26

Equatorial coordinates (epoch J2000):
Ra (α):18h45.2m, Dec (δ):-09° 24'

Visual magnitude: 9,5m
Distance from the star clusters M26 to the Sun is 3740 light years
Angular size: 10'
Class: II,2,r
External dimensions the star clusters M26 are about 10 light years.
Number of stars: 229
Age of the object M26 is 4—6x106 years

Discoverer: Charles Messier, 1764 year.

The designation M26 in other catalogs: NGC 6694

Optimum magnification for a telescope with observations of M26, depending on the aperture of the telescope (D), is about D/6-D/2. 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 M26 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 M26 also in August.
The first half of August is also not very dark, in addition the object will be at midnight not at its highest point,which provides the least exposure and atmospheric distortion. But, the difference is not so noticeable. And already in the second half of August the night sky becomes quite dark for observations (although in September it will more darker).The farther south the place of your observation is located, the earlier the sky will darken - both in time on the clock and on the calendar.


Мessier 25

Мessier 27

Nikolay Kurdyapin, astro-map.com  
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