![]() ![]() ![]() In general this method is best using infrared (or IR) light, where stars are fainter and planets brighter, thus upping the contrast. That makes α Cen a tempting target for direct imaging, literally taking an image of the stars and looking for an exoplanet in it. With closer stars, it appears farther away and easier to spot. For distant stars that zone appears so close to a star that it's difficult to see due to the glare. Because they're close to us it's easier to look for planets in their habitable zones, the distance from either star where liquid water could exist on a planet's surface. ![]()
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