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... М98 < М99 > М100 ...
Spiral galaxy M99
Spiral galaxy M99 is in the constellation Coma Berenices (Com).
Equatorial coordinates (epoch J2000):
Visual magnitude: 9,9m
Optimum magnification for a telescope with observations of M99, depending on the aperture of the telescope (D), is about D/6-D/3. Higher magnifications of course add details, but lead to a strong drop in the brightness of the image, making it difficult to observe.
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Nikolay Kurdyapin, astro-map.com
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