> SDSSJ143016.05+230344.4 (hereafter SDSSJ1430+2303) is known as a Seyfert 1 galaxy at redshift 0.08105 https://astro.ucla.edu/~wright/CosmoCalc.html https://a

> SDSSJ143016.05+230344.4 (hereafter SDSSJ1430+2303) is known as a Seyfert 1 galaxy at redshift 0.08105 https://astro.ucla.edu/~wright/CosmoCalc.html https://astro.ucla.edu/~wright/CosmoCalc.html says this galaxy is ~1.1 Gly, so "not exactly close" whatever that means on a cosmic scale. Intriguingly, this event took place when life on Earth barely existed at all... Edit: at 1,5x10¹¹ solar masses, the galaxy is not at all small (and neither are the BH involved!!!) it's in the same ballpark of the Milky Way.