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Way back when PH started these graphs were not always marked like they are today.
Look under the graph in the bold type. "Known Eclipsing Binary".
Those long vertical transits must be an exoplanet
WHOAH! Agree with you guys, it looks like an eclipsing binary. But is there only 2 objects, or are ther a 3rd as well? like a small planet?
looks like #eclipsing binary