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Fig. 8

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Signal-to-noise ratio for one transit observation (2h26min) of HAT-P-26 b, spending twice that amount of time on baseline out-of-transit observations. Left panel: S/N for the native instrument resolution, and right one is binned in spectral direction to a dispersion of AÀ = 0.05 µm. Calculations are based on a host star with Teff = 5100 K, log(g) = 4.5 and J magnitude 10.80.

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