Carv­ing out an or­bit

Sky at Night Magazine - - EYE ON THE SKY -

ATACAMA LARGE MILLIMETER/ SUBMILLIMETER AR­RAY, 16 OC­TO­BER 2017 Cir­cum­stel­lar discs are rings of gas and dust around young stars, and they of­ten co­a­lesce into plan­ets. The star you see here, V1247 Ori­o­nis, ap­pears to have two: a bright in­ner ring and a wider, fainter one far­ther out. The dark gap in be­tween is thought to be caused by a young planet or­bit­ing the star, carv­ing a path through the ma­te­rial as it does so.

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