KnowraHD 209458 bLinked fromLinked fromThe 8 pages that link to HD 209458 b, each with the reason it gives.All 8Broader topic 5Related 1Compared with 251 Pegasi bCompared with: Unlike 51 Pegasi b, it crosses its star from Earth’s viewpoint, enabling direct measurements of its atmosphere.HD 189733 bCompared with: Its early atmospheric detections offer a landmark comparison with observations of HD 189733 b.