4 ms·
Ton 618, 40B solar mass
- reaperman 3y agoThe event horizon of this black hole is ~1600 astronomical units, or nearly 32 times the distance from the sun to Pluto. This is close to the diameter of the entire solar system. Voyager 1 has so far traveled a distance about 10% of the diameter of this black hole. Another[0] black hole relatively close to Earth has an event horizon diameter 14 miles wide. 0: https://www.scientificamerican.com/gallery/the-smallest-known-black-hole/ https://www.scientificamerican.com/gallery/the-smallest-know...
- atonse 3y agoAm I reading this wrong? According to the wiki article, the quasar is 16 bn light years away, but the light we see from it is only 10 bn years old?
- sundae 3y agohttps://en.m.wikipedia.org/wiki/Expansion_of_the_universe https://en.m.wikipedia.org/wiki/Expansion_of_the_universe
- atonse 3y agoDuh! Thanks. But we usually don’t speak that way about things that might be thousands or millions of light years away but I bet at those “small” scales the difference might be negligible in conversation.