Category: Quasars
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Observation of the quasars QSO J 1723+2243 and SPIT J17210+6017
The observation of two very distant quasars is described. These are extremely faint objects that can only be imaged with powerful telescopes. A very light-sensitive camera is also required.
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The Twin Quasar QSO 0957+561AB
The moon had already risen at night at 10:30 p.m. CET on March 2, 2021, but was still low on the horizon. With 83% illuminated pane, it would soon become a fairly bright "lantern". But the author was not deterred by this.
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Quasar J0209+0517
The image of the quasar J0209+0517 is described. At first, nothing can be seen on individual shots. The addition of several shots brings the desired success.
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Almost at the "edge of the universe" – the quasar QSO J0831+5245
Thomas Grunge and Gerold Holtkamp imaged the quasar QSO J0831+5245 on May 14th 2020 with the Cassegrain telescope (60 cm mirror diameter, 746 cm focal length) of the NVO Observatory. Its speed alone is record-breaking: 276,000 km/s (according to Simbad). Its light was about 12.05 billion (!) light years on its way until it reaches us on Earth.
