December 21, 2021 updates Posted on December 21, 2021 by Doug Loss Software to Determine the Sizes and Orbital Inclinations of Planets from the Transit Observation Data https://link.springer.com/article/10.1134/S1063772921120015 Rotation Period Detection for Earth-like Exoplanets https://iopscience.iop.org/article/10.3847/1538-3881/ac36ce On spectroscopic phase-curve retrievals: H2 dissociation and thermal inversion in the atmosphere of the ultra-hot Jupiter WASP-103 b https://arxiv.org/abs/2112.09973 An Accurate 3D Analytic Model for Exoplanetary Photometry, Radial Velocity, and Astrometry https://arxiv.org/abs/2112.10132 Physical Properties and Impact Parameter Variations of Kepler Planets from Analytic Light Curve Modeling https://arxiv.org/abs/2112.10144 Silicon in the dayside atmospheres of two ultra-hot Jupiters https://arxiv.org/abs/2112.10461 Orbital Period Refinement of CoRoT Planets with TESS Observations https://arxiv.org/abs/2112.10535