M103 - NGC 581 |
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Minimum viewing equipment: binoculars M103 - NGC581 was discovered by Pierre Mechain in 1781.. It is an open cluster. A better view can be obtained using a 4 inch telescope which is able to resolve many of the fainter stars. It is not known yet if this cluster is bound by gravity. Note: This is an extended exposure picture taken with specialised equipment and is likely different from what can be seen through an ordinary telescope. |
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