Jisho

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十字架
Wikipedia definition
1. Einstein CrossThe Einstein Cross or Q2237+030 or QSO 2237+0305 is a gravitationally lensed quasar that sits directly behind ZW 2237+030, Huchra's Lens. Four images of the same distant quasar appear around a foreground galaxy due to strong gravitational lensing. The quasar is located about 8 billion light years from Earth, while the lensing galaxy is located at a distance of 400 million light years.
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