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... М42 < М43 > М44 ...
Emission nebula M43
Die offener Sternhaufen M43 or De Mairan's, part of M42 Emission nebula is in the constellation Orion (Ori).
Equatorial coordinates (epoch J2000):
Visual magnitude: 7,0m
Optimum magnification for a telescope with observations of M43, 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 M43 is January. 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.
Nikolay Kurdyapin, astro-map.com
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