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Glory revealed in disk-integrated photometry of Venus

Sánchez-Lavega, A.; Pérez-Hoyos, S.; García Muñoz, A.

Context. Reflected light from a spatially unresolved planet yields unique insight into the overall optical properties of the planet cover. Glories are optical phenomena caused by light that is backscattered within spherical droplets following a narrow distribution of sizes; they are well known on Earth as localised features above liquid clouds.

Observations and analysis of phase scintillation of spacecraft signal on the interplanetary plasma

Bocanegra-Bahamón, T. M.; Molera Calvés, G.; Duev, D. A. +13 more

Aims: The phase scintillation of the European Space Agency's Venus Express (VEX) spacecraft telemetry signal was observed at X-band (λ = 3.6 cm) with a number of radio telescopes of the European Very Long Baseline Interferometry (VLBI) Network in the period 2009-2013.
Methods: We found a phase fluctuation spectrum along the Venus orbit w…