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However, in a telescope it resolves into a double star consisting of β Cygni A (amber, apparent magnitude 3.1), and β Cygni B (blue-green, apparent magnitude 5.1). [34] Separated by 35 seconds of arc, [13] the two components provide one of the best contrasting double stars in the sky due to their different colors.
Democratic Republic of the Congo; Use: National flag and ensign: Proportion: 3:4 [citation needed]: Adopted: 18 February 2006; 18 years ago (): Design: A sky blue field with a yellow five-pointed star in the canton and cut yellow-fimbriated red diagonal band from the lower hoist-side to the upper fly-side
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President Chiang Kai-shek proclaimed on the National Day in 1929, "As long as a national flag with Blue Sky, White Sun, and a Wholly Red Earth flies in the land of China, it will symbolize the independence and liberty of the descendants of the Huang Emperor". The blue-and-white canton of the ROC flag is often used as the party flag of the KMT.
The star contains starspots on its surface ζ And Aa 2.502 ± 0.008: 15.0 ± 0.8 (polar) 189 ± 3: CFHT [9] [10] 1996: First direct imaging of starspots on a star outside the Solar System. R Dor: 57 ± 5: 370 ± 50: 204 ± 9: New Technology Telescope [11] 1993: 2nd largest known star by apparent diameter in Earth's sky, after the Sun. Mira ο ...
Blue flag with a star in the middle surrounded by twelve secondary stars. This is the most similar flag to the current one, with 12 stars instead of 15, and a star in the middle to probably represent Strasbourg or union. [61] [77] 9 December 1955 Committee of European Ministers Blue field with a five-pointed 12-star circle [78]
Because O-type and B-type stars with a giant luminosity classification are often somewhat more luminous than their normal main-sequence counterparts of the same temperatures and because many of these stars are relatively nearby to Earth on the galactic scale of the Milky Way Galaxy, many of the bright stars in the night sky are examples of blue ...
View of the night sky in July The day's blue sky, clouds and the Moon. The sky is an unobstructed view upward from the surface of the Earth. It includes the atmosphere and outer space. It may also be considered a place between the ground and outer space, thus distinct from outer space.