Studies of day, twilight and night horizons of the Earth were part of the program ofscientific observations carried out during the flights of the Vostok spacecrafts. Theseobservations continued during the 24-hour flight of Voskhod-1. The article describesthe main equipment and facilities for monitoring and recording the horizon and haloof the Earth’s atmosphere during the Voskhod-1 flight as well as the main results andconclusions based on the analysis of thus obtained photographs.