Open star cluster M93
Open star cluster M93 is in the constellation Puppis (Pup).
Equatorial coordinates (epoch J2000):
Ra 07h 44.6m, Dec -23° 52'
Visual magnitude: 6,5m
Distance to the star clusters M93 to the Sun is 3380 light years
Angular size: 24'
External dimensions the star clusters M93 are about 23 light years.
Number of stars: ?
Age of the object M93 is 100-400x106 years
Discoverer: Charles Messier, 1781 year.
The designation M93 in other catalogs: NGC 2447
M93 in the middle latitudes is located quite low above the horizon, so observation is difficult due to atmospheric distortions.
In the northern latitudes is not visible.Optimum magnification for a telescope with observations of M93, depending on the aperture of the telescope (D), is about 15x-40x. 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 M93 is February.
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