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| Russian | English |
| астрономический полдень | solar noon (that moment of the day that divides the daylight hours for that day exactly in half; the time of day at which the sun is the highest in the sky, this time varies through the year due to the change in speed of the earth's orbit around the sun. Lavrin) |
| астрономическое гринвичское время | Zulu-Time (Greenwich Mean Time; также применяется американскими военными) |
| обработка и отбор данных астрономических наблюдений | astronomical data reduction (Alex_Odeychuk) |
| сведение данных астрономических наблюдений | astronomical data reduction (Alex_Odeychuk) |