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Melotte III is a sprawling open cluster that may be noticed with the bare eye tucked away in far north-west of Coma Berenices. It’s popularly named the Coma Star Cluster and offers a pleasing different on the peak of galaxy observing season. Melotte 111 is called for the English astronomer Philibert Jacques Melotte (1880–1961), who included it in his catalogue of star clusters in 1915..
The Coma Star Cluster is massive and unfastened, overlaying a 4 to 5 levels of sky. It’s a problem to select in a reasonably light-polluted sky, taking over a fuzzy look. Magnitude +4.4 gamma (γ) Comae Berenices [Com]) is its brightest member and marks its northern extremity. 5 of its fifth-magnitude stars, Flamsteed designated 12, 13, 14, 16 and 17 Com, type a triangular sample that’s properly seen via 10 x 50 binoculars, most likely the very best instrument via which to watch Melotte III, as a small telescope received’t present the cluster to related benefit owing to restricted fields of view. There are round 40 stars shining between magnitude +5 and +10.
In late Could, Melotte III culminates earlier than dusk however stands tall, round 60 levels within the south-southwest because the sky darkens. It may be noticed all through the evening.
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