North Ecliptic Pole and KAZ 102
This PSPC image of the North Ecliptic Pole shows KAZ 102, an optically bright, radio quiet quasar. KAZ 102 (towards the top of the image) was monitored during the ROSAT All-Sky Survey for 121.5 days (July 30 1990 to Jan25 1991).
Some characteristics of quasars are:
(This tells us that quasars are very far away. Since it takes so long for light to travel long distances, qusars must be some of the oldest objects in the Universe.)
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