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How We Find Them

In Brief

Canvass the Sky

California Institute of Technology astronomer Robert Quimby, who found the two brightest supernovae on record, including 2006GY, scans large areas of the sky nightly with a robotic telescope. His search program compares snapshots of the sky on previous nights—essentially looking for bright spots that weren’t there before.

Don't Skip the Core

Most supernova hunters neglect to search the cores of galaxies or the areas around massive black holes, because these locales can often turn up too many false alarms. Yet that’s exactly where Quimby spotted his bright light; he decided to peek in there precisely because no one else was doing so.

Use Lots of Eyes

Quimby alerted other astronomers to his potential find. Within a month, astrophysicist Nathan Smith of the University of California at Berkeley was leading a team using a variety of observatories to gather added optical and spectral data. They also used the Chandra X-ray Observatory to measure 2006GY’s x-ray emissions.

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