Slept until noon. Really didn’t want to get up. Today is bath day. Still a lot of fuss assembling it and emptying the water containers. In the future the bath should be integrated with the “Rodnik” water system and the toilet. I washed first. So good when all the grime gets washed off. After the bath I tell Tolya: “Pity there’s no shop — nowhere to run out to.” During the comm session we talked with Sasha Serebrov, and in the next session the French visitors and our families came. Everyone chatted together. Then an hour and a half later we met again. For some reason Lyusya is nervous; my son picks up the slack — good boy. He says: “Hurry up, winter, my birthday, then you’ll be with us on Earth.” Overall, a good day. Entering shadow, I watched the Earth’s horizon and I think I understood why the blue “searchlight whiskers” form. At sunset the Sun’s grazing rays along the horizon penetrate the atmosphere, refract, and we observe them on both sides of the Sun as blue beams with a blue shadow on the cloud surface.

Interesting — does the refraction angle and the angular distance from the Sun to the apex of the light cone change? And what does it depend on: the state of the atmosphere (dust, moisture), the temperature distribution, altitude inhomogeneities, the observation point?