- Delta Cephei (Wikipedia)
Delta Cephei (δ Cep, δ Cephei) is a quadruple star system located approximately 887 light-years away in the northern constellation of Cepheus, the King. At this distance, the visual magnitude of the star is diminished by 0.23 as a result of extinction caused by gas and dust along the line of sight. It is the prototype of the Cepheid variable stars that undergo periodic changes in luminosity.
- Tokyo (Wikipedia)
Tokyo (/ˈtoʊkioʊ/; Japanese: 東京, Tōkyō, [toːkʲoː]), officially the Tokyo Metropolis (東京都, Tōkyō-to), is the capital of Japan and the most populous city in the world with a population of over 14 million residents as of 2023. The Tokyo metropolitan area, which includes Tokyo and nearby prefectures, is the world’s most-populous metropolitan area with 40.8 million residents as of 2023.