«For about three minutes after the BAT trigger, the superflare's X-ray brightness was greater than the combined luminosity of both stars at all wavelengths under normal conditions,» noted Goddard's Adam Kowalski, who is leading a detailed study on the event. (sciencedaily.com)
The inner yellow ring is an indication where the temperature is 100 degrees above the absolute zero -LRB--173 C) with the current luminosity of the star while the outer yellow ring shows where this temperature was reached when the star was a hundred times brighter. (sciencedaily.com)
Comparing the actual and apparent luminosity of a star should in theory make it possible to calculate its distance. (galaxymap.org)