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2025, May 2025 Charles Lillo 2025, May 2025 Charles Lillo

Sextans A – A Dwarf Galaxy on the Fringe

Sextans A is a faint, irregular dwarf galaxy located about 4.3 million light-years away in the constellation Sextans. As a member of the Local Group, this galaxy offers a glimpse into the early stages of galactic evolution. Its loosely bound stars and scattered clusters reflect an active star-forming history in an environment lacking the defined structure of spiral or elliptical galaxies. Sparse and dim, Sextans A is challenging to image, even under dark skies, due to its low surface brightness.

Captured from the exceptionally dark skies of Rooisand Desert Ranch, Namibia, this image brings out subtle regions of star formation and the soft glow of countless stars within the dwarf galaxy. The pristine southern location and long exposure times reveal details usually lost in light pollution, offering a rare look at this overlooked galactic neighbor on the edge of visibility.

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