Whilst I was just observing with Parkes, pulled down some #JWST images & processed them.

#GravitationalLensing

1. everything here is a galaxy 🤯

2. Foreground galaxies lensing background galaxies 🤯

Always like to do a little reading about these targets, and these images are of SGAS J122651.3+215220 ...

Lensed galaxy SGAS J122651.3+215220 is at z= 2.923 and the foreground cluster (SDSS J1226+2152) is at z = 0.43

These are ... billions upon billions of years old! The foreground galaxy clusters ... even though they are still very far from us, act as a huge mass, and their gravity causes the space-time around them to be curved, so light is bent towards us, so we see the background galaxies as smeared arcs.

And whilst those brightly lensed arcs are interesting, if you look carefully, you’ll note that there are also these fainter arcs (annotated by arrows)

These are rather cool images and remember … lots of the JWST data is publicly available to everyone!

📸 JWST/STScI/JR Rigby
🎛️ NIRCAM/F277W

#Astrodon #Galaxies #Astronomy