What is Nostr?
Anthony Horton /
npub1c2u…jy8q
2024-07-30 04:06:23

Anthony Horton on Nostr: Mild amusement at the Australian astronomy Decadal Plan town hall that the ...

Mild amusement at the Australian astronomy Decadal Plan town hall that the extra-galactic astronomers and cosmologists now consider anything below a redshift of 1 to be "local".

That means anything within a (co-moving) distance of 3.3 Gpc, 11 Gly or 100 000 000 000 000 000 000 000 km.

The "local Universe" also includes most of Time. At a redshift of 1 you're looking 7.7 Gyr back in time, about 5.8 Gyr after the Big Bang.

Author Public Key
npub1c2uyhe56wlk09hnqymlrhrjlkpay7lpj0rf4xkddt55u07u009rqnujy8q