Abell 1656 (
I captured this cluster in 2020, with the
Looking online for pictures of this cluster, I saw that a quasar was also detected in the field, QSO [HB89] 1256+280, located at an approximate distance of 11.3 billion light years (+/-1 billion). And I have it in the picture too! (annotated as Q 1256+2804).
I put
"Layer
PGC layer: 478 entities
Layer Milliquas: 538 entities"
It was not even able to write the names of all the detected galaxies. And quasars are a lot! For some annotated quasars nothing can be seen, but there are enough that are visible, especially if you zoom in 200-300%.
Unfortunately, the annotation greatly increased the size of the picture (6MB jpg), so I had to reduce it to 50%. Anyway, our site reduce the resolution of large images. Here is the image in full resolution: https://photos.
Total exposure: 11 hours and 30 minutes. Omegon 203/800 and ASI1600MM.
Clear skies!