The purpose of this study was to compare and verify the effects of differences in specifications among domes on the realism of dome image. Until now, there has been little research on how external factors affect the realism of dome image. This was because the equipment used to show dome image is proprietary, and it has been very difficult to show the same content with the same specification at all planetariums at the same time. In this study, we cooperated with the“Immersive LIVE Viewing” project of Tokyo 2020 live distribution of the Olympic Games, and conducted a questionnaire survey to analyze the relationship between the audience’s impression evaluation and external factors when viewing sport video. These results suggested that the dome tilt had no effect on the sense of presence, the smaller the dome diameter, the more ‘feeling good’ and ‘powerful’, and the higher the screen illuminance, the higher the sense of presence evaluation and the higher the clarity of the images. After the further verification, we believe that a high sense of presence through dome image may become important as one of methods of virtual tourism.