Wednesday, September 15, 2021

AD 1181

The Mancs think they've found the AD 1181 supernova. There have been five in our Milky Way since AD 1006; that's the one no-one'd found in the sky yet.

It's at nebula Pa30 around Parker’s Star, Albert Zijlstra and his team tell us. This rubble came out of a merger between two white dwarfs, so it wasn't a typical Type I / Type II.

As having happened in our own galaxy, I suspect most supernovae cluster toward Sagittarius, where the core is. Luckily that's also in our ecliptic so it's visible to northern latitudes, where we'd been keeping track. Southern latitudes, basically first visible to Ferdinand Magellan, are good for spotting novae in the Magellanic Clouds.

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