It's been a lifelong quest to find a practical use for ham radio.  There was the idea of listening to the space station.  There was trying to receive GOES satellite data, which the internet has proven to be extremely hard.  15 years ago, the lion kingdom made some astrophotography photos.  People have migrated to cities in the last 15 years.  If you have a job, the sky is now too bright to see anything anymore.  If you don't have a job, it's darker than it was 30 years ago.  It's darker in Illinois than it was 30 years ago while Calif* is much brighter.  The next frontier for those of us with jobs is radio photography.

There are some previous radio telescope attempts:

https://hackaday.io/project/7157-the-tiny-radio-telescope

https://hackaday.io/project/27582-radiotelescope-interferometer-imfr11ghz

https://www.rtl-sdr.com/rtl-sdr-for-budget-radio-astronomy/

The amusing thing about this one was what a 25 year old of today found the most challenging, like converting dB to a greyscale value, averaging values, making a pan/tilt platform, drawing a happy face on it.  This was grade school, 30 years ago.

All the amateur radio telescopes are basically surplus satellite TV dishes on pan/tilt platforms, with SDR receivers whacked on.  They measure the magnitude of carrier waves, but not modulation or phase.  The question is what lions would do differently to make a different picture.