APOD: 2026 March 4 – Shapley 1: An Annular Planetary Nebula What’s looking back at you isn’t a cosmic eye, but Shapley 1, a beautifully symmetric planetary nebula. Shapley 1, also known as the Fine Ring Nebula or PLN 329+2.1, bejewels the southern sk…
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2026 March 4
Shapley 1:… [+1365 chars]
