High-precision photometry by telescope defocusing - IV. Confirmation of the huge radius of WASP-17 b
High-precision photometry by telescope defocusing - IV. Confirmation of the huge radius of WASP-17 b
We present photometric observations of four transits in the WASP-17 planetary system, obtained using telescope defocusing techniques and with scatters reaching 0.5 mmag per point. Our revised orbital period is 4.0 ± 0.6 s longer than previous measurements, a difference of 6.6σ, and does not support the published detections of …