Tag: Quasar
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TON 618 – the giant
On April 26, 2025, I took a photograph showing an area on the border between the constellation Canes Venatici and the constellation Coma Berenices. It's probably the most unspectacular photograph I've ever taken. However, among the recognizable stars and objects is my personal record holder.
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Mirage in the Sky
The observation of the three quasars Q0957+561, RXJ0921+4529, and SDSS J1029+2623 is described. In these cases, multiple images are generated by galaxies or galaxy clusters in the foreground, which act as gravitational lenses. It is shown that these images can be resolved even at an urban observation site.
