太陽系外縁天体2002 XV93が恒星を隠す様子 (IMAGE) National Institutes of Natural Sciences Caption 太陽系外縁天体2002 XV93が恒星を隠す様子。大気によって緩やかに暗くなっていった現象が捉えられた。 Credit 国立天文台 Usage Restrictions None. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.