https://hubblesite.org/contents/media/images/2018/20/4158-Image URL: https://stsci-opo.org/STScI-01EVT0K6Q6VEVCXRZC8K7YF540.tif determination method or standard:...
witnessed supernova 2001ig go off 40 million light-years away in the galaxy NGC 7424, in the southern constellation Grus, the Crane. determination method: work...
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