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2025, March 2025 Charles Lillo 2025, March 2025 Charles Lillo

IC 410: The Tadpole Nebula and Open Cluster NGC 1893

IC 410, known as the Tadpole Nebula, is a vibrant emission nebula located in the constellation Auriga, about 12,000 light-years away. At its core lies NGC 1893, an open cluster of young, massive stars whose intense radiation ionizes the surrounding hydrogen gas, causing the nebula to glow in shades of red and gold. This cluster, formed around 4 million years ago, powers the nebula and sculpts its intricate features.

A distinctive feature of IC 410 is the presence of two elongated tadpole-shaped structures, composed of dense gas and dust. These “tadpoles” are approximately 10 light-years long and point toward the cluster’s center. These regions are believed to be sites of ongoing star formation, where gravitational collapse may give rise to new stars. A lesser-known detail is that the tadpoles’ tails, shaped by the stellar winds of NGC 1893, align perfectly with the radiation pressure exerted by the cluster’s hot stars, offering a unique glimpse into the interplay between stellar winds and nebular material.

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