Open cluster pair of NGC 2451 (right), a bright loose cluster, and NGC 2477 (left), a fainter but very rich open cluster. The field is also filled with faint emission nebulosity.
NGC 2477 is a stunning cluster, almost as extensive in the sky as the full moon. It has been called "one of the top open clusters in the sky",like a highly-resolved globular cluster without the dense center characteristic of globular clusters. Burnham notes that several observers have remarked on its richness, and that although it is smaller than M46 (also an open cluster in Puppis), it is richer and more compact.
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